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Sample records for american superconductor corporation

  1. American Superconductor Corporation AMSC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump to:Hempstead Biomass Facility JumpSuperconductor

  2. Comments of North American Electric Reliability Corporation ...

    Office of Environmental Management (EM)

    RFI. North American Electric Reliability Corporation (NERC) More Documents & Publications City Utilities of Springfield Missouri Comments on Smart Grid RFI: Addressing Policy and...

  3. American Superconductor Corporation | Open Energy Information

    Open Energy Info (EERE)

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  4. EA-200 American Electric Power Service Corporation | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electricLaboratoryofNoticesEnergyfinding of noadopted anAmerican

  5. Development of high temperature superconductors for electric power applications

    SciTech Connect (OSTI)

    Schiff, N. [American Superconductor Corp., Westborough, MA (United States)

    1995-09-01

    The Nobel Prize-winning discovery in 1986 of a new family of superconductors that exhibited the property of no resistance at temperatures more than ten times greater than the traditional low temperature superconductors (LTS) currently used in MRI and high field magnets, made it possible to foresee a new era for the production, transmission and distribution of electrical power. Smaller, more efficient motors, generators, power cables, transformers, inductors, and superconducting magnetic energy storage (SMES) for power quality were applications immediately envisioned for these high temperature superconductors (HTS), promising enhanced capabilities and lower costs. Work also began on new product concepts, such as more effective fault current limiters for both transmission and distribution systems that could protect expensive hardware and avoid the cost of upgrading circuit breakers as system capacity is increased. The interest of industry and utilities has been increased by successful demonstrations of small-scale prototypes. Recent demonstrations include a one meter conductor for an underground transmission cable produced by American Superconductor which carried over 4,200 amps, a 5 hp synchronous motor produced by Reliance Electric Company, magnet systems which generated over 2 Tesla at temperatures over 20 Kelvin (K) by both American Superconductor Corporation (ASC) and Sumitomo Electric Industries. The Department of Energy, under the Superconductivity Partnership Initiative Program (SPI), recently funded four application development projects: a 100 hp HTS motor demonstration, design of a generator rotor, a fault current limiter for distribution systems, and a 30 meter HTS power transmission cable. This paper will review the progress in application development of HTS products. The specific benefits and costs associated with this technology in power applications will be examined.

  6. Organic Superconductors

    SciTech Connect (OSTI)

    Charles Mielke

    2009-02-27

    Intense magnetic fields are an essential tool for understanding layered superconductors. Fundamental electronic properties of organic superconductors are revealed in intense (60 tesla) magnetic fields. Properties such as the topology of the Fermi surface and the nature of the superconducting order parameter are revealed. With modest maximum critical temperatures~13K the charge transfer salt organic superconductors prove to be incredibly valuable materials as their electronically clean nature and layered (highly anisotropic) structures yield insights to the high temperature superconductors. Observation of de Haas-van Alphen and Shubnikov-de Haas quantum oscillatory phenomena, magnetic field induced superconductivity and re-entrant superconductivity are some of the physical phenomena observed in the charge transfer organic superconductors. In this talk, I will discuss the nature of organic superconductors and give an overview of the generation of intense magnetic fields; from the 60 tesla millisecond duration to the extreme 1000 tesla microsecond pulsed magnetic fields.

  7. The impact and potential role of multinational corporations in achieving sustainability in Latin American countries

    E-Print Network [OSTI]

    Atencio, Charles V. (Charles Victor)

    2010-01-01

    This thesis aims to assess the activities and influence of automotive multinational corporations (MNCs) in developing countries as it relates to the concept of "total sustainability" within three countries: Argentina, ...

  8. Anglo-American Corporate Taxation: Tracing the Common Roots of Divergent Approaches

    E-Print Network [OSTI]

    Bank, Steven A.

    2013-01-01

    as Ford Motor Company, the Mellon family’s Gulf Petroleum3 To avoid diluting family control, the company only issuedand the Duke family’s American Tobacco Company were all

  9. Holographic Superconductors

    E-Print Network [OSTI]

    Sean A. Hartnoll; Christopher P. Herzog; Gary T. Horowitz

    2008-10-09

    It has been shown that a gravitational dual to a superconductor can be obtained by coupling anti-de Sitter gravity to a Maxwell field and charged scalar. We review our earlier analysis of this theory and extend it in two directions. First, we consider all values for the charge of the scalar field. Away from the large charge limit, backreaction on the spacetime metric is important. While the qualitative behaviour of the dual superconductor is found to be similar for all charges, in the limit of arbitrarily small charge a new type of black hole instability is found. We go on to add a perpendicular magnetic field B and obtain the London equation and magnetic penetration depth. We show that these holographic superconductors are Type II, i.e., starting in a normal phase at large B and low temperatures, they develop superconducting droplets as B is reduced.

  10. EA-200-B American Electric Power Service Corporation | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electricLaboratoryofNoticesEnergyfinding of noadoptedAmerican Electric

  11. Superconductor cable

    DOE Patents [OSTI]

    Allais, Arnaud; Schmidt, Frank; Marzahn, Erik

    2010-05-04

    A superconductor cable is described, having a superconductive flexible cable core (1) , which is laid in a cryostat (2, 3, 4), in which the cable core (1) runs in the cryostat (2, 3, 4) in the form of a wave or helix at room temperature.

  12. Superconductor cable

    DOE Patents [OSTI]

    Smith, Jr., Darrell F. (Huntington, WV); Lake, Bill L. (Ona, WV); Ballinger, Ronald G. (Andover, MA)

    1988-01-01

    A superconducting cable comprising an in-situ-formed type II superconductor, e.g. Nb.sub.3 Sn, in association with a stabilizing conductor both in heat transfer relationship with at least one passage adapted to carry liquified gaseous refrigerant. The conductor and said at least one passage are enclosed by a sheath comprising an alloy consisting essentially of about 49% nickel, about 4% chromium, about 3% niobium, about 1.4% titanium, about 1% aluminum, balance essentially iron.

  13. Review: Business and Environmental Policy: Corporate Interests in the American Political System, by Michael E. Kraft and Sheldon Kamieniecki (eds.)

    E-Print Network [OSTI]

    Meij, Jan-Martin

    2008-01-01

    Review: Business and Environmental Policy: Corporateeds). Business and Environmental Policy: Corporate Interestsalso holds in the environmental policy-making realm and many

  14. Review: Business and Environmental Policy: Corporate Interests in the American Political System, by Michael E. Kraft and Sheldon Kamieniecki (eds.)

    E-Print Network [OSTI]

    Meij, Jan-Martin

    2008-01-01

    in the realm of environmental policy- making for which itto influence environmental policy making, and politicalBusiness and Environmental Policy: Corporate Interests in

  15. EIS-0445: American Electric Power Service Corporation's Mountaineer Commercial Scale Carbon Capture and Storage Demonstration, New Haven, Mason County, West Virginia

    Broader source: Energy.gov [DOE]

    DOE evaluates the potential environmental impacts of providing financial assistance for the construction and operation of a project proposed by American Electric Power Service Corporation (AEP). DOE selected tbis project for an award of financial assistance through a competitive process under the Clean Coal Power Initiative (CCPI) Program. AEP's Mountaineer Commercial Scale Carbon Capture and Storage Project (Mountaineer CCS II Project) would construct a commercial scale carbon dioxide (C02l capture and storage (CCS) system at AEP's existing Mountaineer Power Plant and other AEP owned properties located near New Haven, West Virginia.

  16. Superconductor cable

    DOE Patents [OSTI]

    Allais, Arnaud (Hannover, DE); Schmidt, Frank (Langenhagen, DE

    2009-12-15

    A superconductor cable includes a superconductive cable core (1) and a cryostat (2) enclosing the same. The cable core (1) has a superconductive conductor (3), an insulation (4) surrounding the same and a shielding (5) surrounding the insulation (4). A layer (3b) of a dielectric or semiconducting material is applied to a central element (3a) formed from a normally conducting material as a strand or tube and a layer (3c) of at least one wire or strip of superconductive material is placed helically on top. The central element (3a) and the layer (3c) are connected to each other in an electrically conducting manner at the ends of the cable core (1).

  17. Topological Insulators & Superconductors

    E-Print Network [OSTI]

    Topological Insulators & Superconductors New Frontiers in Low-Dimensional Systems Program 3-5 November 2010 Jadwin Hall, Fourth Floor, Room 407 Topological Insulators and Superconductors have quickly Insulators and Superconductors will gather the world- leading researchers in this field to present recent

  18. A corporate fitness center : an example for the reuse of the Empire Stores, Brooklyn, N.Y.

    E-Print Network [OSTI]

    Georgopulos, Diane Theodora

    1982-01-01

    The proliferation of over 500 fitness programs for the employees of American corporations marks a turning point for the way American corporations regard employee and corporate health. Typically, sports facilities were the ...

  19. Fine uniform filament superconductors

    DOE Patents [OSTI]

    Riley, Jr., Gilbert N. (Marlborough, MA); Li, Qi (Marlborough, MA); Roberts, Peter R. (Groton, MA); Antaya, Peter D. (Sutton, MA); Seuntjens, Jeffrey M. (Singapore, SG); Hancock, Steven (Worcester, MA); DeMoranville, Kenneth L. (Jefferson, MA); Christopherson, Craig J. (Worcester, MA); Garrant, Jennifer H. (Natick, MA); Craven, Christopher A. (Bedford, MA)

    2002-01-01

    A multifilamentary superconductor composite having a high fill factor is formed from a plurality of stacked monofilament precursor elements, each of which includes a low density superconductor precursor monofilament. The precursor elements all have substantially the same dimensions and characteristics, and are stacked in a rectilinear configuration and consolidated to provide a multifilamentary precursor composite. The composite is thereafter thermomechanically processed to provide a superconductor composite in which each monofilament is less than about 50 microns thick.

  20. Superconductor rotor cooling system

    DOE Patents [OSTI]

    Gamble, Bruce B.; Sidi-Yekhlef, Ahmed; Schwall, Robert E.; Driscoll, David I.; Shoykhet, Boris A.

    2004-11-02

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  1. Superconductor rotor cooling system

    DOE Patents [OSTI]

    Gamble, Bruce B. (Wellesley, MA); Sidi-Yekhlef, Ahmed (Framingham, MA); Schwall, Robert E. (Northborough, MA); Driscoll, David I. (South Euclid, OH); Shoykhet, Boris A. (Beachwood, OH)

    2002-01-01

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  2. Performance Boundaries in Nb3Sn Superconductors

    E-Print Network [OSTI]

    Godeke, Arno

    2006-01-01

    Boundaries in Nb 3 Sn Superconductors – Berkeley, CABoundaries in Nb 3 Sn Superconductors – Berkeley, CABoundaries in Nb 3 Sn Superconductors Arno Godeke Berkeley,

  3. Introduction to Holographic Superconductors

    E-Print Network [OSTI]

    Gary T. Horowitz

    2010-02-17

    These lectures give an introduction to the theory of holographic superconductors. These are superconductors that have a dual gravitational description using gauge/gravity duality. After introducing a suitable gravitational theory, we discuss its properties in various regimes: the probe limit, the effects of backreaction, the zero temperature limit, and the addition of magnetic fields. Using the gauge/gravity dictionary, these properties reproduce many of the standard features of superconductors. Some familiarity with gauge/gravity duality is assumed. A list of open problems is included at the end.

  4. Crystalline color superconductors

    E-Print Network [OSTI]

    Roberto Anglani; Roberto Casalbuoni; Marco Ciminale; Raoul Gatto; Nicola Ippolito; Massimo Mannarelli; Marco Ruggieri

    2014-04-12

    Inhomogeneous superconductors and inhomogeneous superfluids appear in a variety of contexts including quark matter at extreme densities, fermionic systems of cold atoms, type-II cuprates, and organic superconductors. In the present review the focus is on properties of quark matter at high baryonic density, which may exist in the interior of compact stars. The conditions realized in these stellar objects tend to disfavor standard symmetric BCS pairing and may favor an inhomogeneous color superconducting phase. The properties of inhomogeneous color superconductors are discussed in detail and in particular of crystalline color superconductors. The possible astrophysical signatures associated with the presence of crystalline color superconducting phases within the core of compact stars are also reviewed.

  5. Observation of magnetic field lines in the vicinity of a superconductor with the naked eye

    E-Print Network [OSTI]

    Yoshihiko Saito

    2008-11-04

    Meissner effect and pinning effect are clearly observed with the naked eye. A GdBaCuO high-temperature superconductor (HTS) disk fabricated by Nippon Steel Corporation, a 100mm cubic NdFeB sintered magnet, and iron wires coated by colored are used. When the HTS is put in the magnetic field of the magnet, it can be observed by the wires that the magnetic field lines are excluded from the superconductor (Meissner effect) as well as are pinned in the superconductor (pinning effect).

  6. An Analytic Holographic Superconductor

    E-Print Network [OSTI]

    Christopher P. Herzog

    2011-01-16

    We investigate a holographic superconductor that admits an analytic treatment near the phase transition. In the dual 3+1 dimensional field theory, the phase transition occurs when a scalar operator of scaling dimension two gets a vacuum expectation value. We calculate current-current correlation functions along with the speed of second sound near the critical temperature. We also make some remarks about critical exponents. An analytic treatment is possible because an underlying Heun equation describing the zero mode of the phase transition has a polynomial solution. Amusingly, the treatment here may generalize for an order parameter with any integer spin, and we propose a Lagrangian for a spin two holographic superconductor.

  7. Physical Vacuum in Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2009-08-31

    Although experiments carried out by Jain et al. showed that the Cooper pairs obey the strong equivalence principle, The measurement of the Cooper pairs inertial mass by Tate et al. revealed an anomalous excess of mass. In the present paper we interpret these experimental results in the framework of an electromagnetic model of dark energy for the superconductors' vacuum. We argue that this physical vacuum is associated with a preferred frame. Ultimately from the conservation of energy for Cooper pairs we derive a model for a variable vacuum speed of light in the superconductors physical vacuum in relation with a possible breaking of the weak equivalence principle for Cooper pairs.

  8. Exploring colourful holographic superconductors

    E-Print Network [OSTI]

    Kasper Peeters; Jonathan Powell; Marija Zamaklar

    2009-07-09

    We explore a class of holographic superconductors built using non-abelian condensates on probe branes in conformal and non-conformal backgrounds. These are shown to exhibit behaviour of the specific heat which resembles that of heavy fermion compounds in the superconducting phase. Instead of showing BCS-like exponential behaviour, the specific heat is polynomial in the temperature. It exhibits a jump at the critical temperature, in agreement with real-world superconductors. We also analyse the behaviour of the energy gap and the AC and DC conductivities, and find that the systems can be either semi-conducting or metallic just above the critical temperature.

  9. Unconventional Color Superconductor

    E-Print Network [OSTI]

    Mei Huang

    2007-01-31

    Superfluidity or superconductivity with mismatched Fermi momenta appears in many systems such as charge neutral dense quark matter, asymmetric nuclear matter, and in imbalanced cold atomic gases. The mismatch plays the role of breaking the Cooper pairing, and the pair-breaking state cannot be properly described in the framework of standard BCS theory. I give a brief review on recent theoretical development in understanding unconventional color superconductivity, including gapless color superconductor, the chromomagnetic instabilities and the Higgs instability in the gapless phase. I also introduce a possible new framework for describing unconventional color superconductor.

  10. Investigation of Nb3Sn Based Superconductors Through Hierarchical Models

    E-Print Network [OSTI]

    Collins, Brett

    2013-01-01

    lament Superconductors . . . . . . . . . . . . . . . 2.6.1Relevant Superconducting Materials . . . . . . . . . . . .Watanabe. Composite Superconductors. Marcel Dekker, Inc. , [

  11. On inhomogeneous holographic superconductors

    E-Print Network [OSTI]

    Massimo Siani

    2011-04-22

    We study a model describing a four-dimensional holographic superconductor whose properties depend non-trivially on a particular spatial direction, namely a Josephson junction. We analyze the parameter dependence of the condensate and compare it to the condensed matter expectations.

  12. Holographic helical superconductors

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2011-12-13

    We show that D=5 electrically charged AdS black branes can have instabilities associated with spatially modulated p-wave superconductors with helical structure. We show that the instabilities are present within N=4 $SU(2)\\times U(1)$ gauged supergravity and hence within D=10 and D=11 supergravity.

  13. CHARGE-IMBALANCE FLUCTUATIONS IN SUPERCONDUCTORS

    E-Print Network [OSTI]

    Lemberger, Thomas R.

    2014-01-01

    Introduction to Superconductivity, (McGraw-Hill, New York,FLUCTUATIONS IN SUPERCONDUCTORS Thomas R. Lemberger MarchFLUCTUATIONS IN SUPERCONDUCTORS Thomas R. Lemberger

  14. Ambient-pressure organic superconductor

    DOE Patents [OSTI]

    Williams, Jack M. (Downers Grove, IL); Wang, Hsien-Hau (Willowbrook, IL); Beno, Mark A. (Woodridge, IL)

    1986-01-01

    A new class of organic superconductors having the formula (ET).sub.2 MX.sub.2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET).sub.2 AuI.sub.2 exhibits a transition temperature of 5 K which is high for organic superconductors.

  15. Introduction to Holographic Superconductor Models

    E-Print Network [OSTI]

    Rong-Gen Cai; Li Li; Li-Fang Li; Run-Qiu Yang

    2015-05-07

    In the last years it has been shown that some properties of strongly coupled superconductors can be potentially described by classical general relativity living in one higher dimension, which is known as holographic superconductors. This paper gives a quick and introductory overview of some holographic superconductor models with s-wave, p-wave and d-wave orders in the literature from point of view of bottom-up, and summarizes some basic properties of these holographic models in various regimes. The competition and coexistence of these superconductivity orders are also studied in these superconductor models.

  16. A Rotating Holographic Superconductor

    E-Print Network [OSTI]

    Julian Sonner

    2009-03-31

    In this paper we initiate the study of SSB in 3+1 dimensional rotating, charged, asymptotically AdS black holes. The theory living on their boundary, R x S^2, has the interpretation of a 2+1 dimensional rotating holographic superconductor. We study the appearance of a marginal mode of the condensate as the temperature is decreased. We find that the transition temperature depends on the rotation. At temperatures just below T_c, the transition temperature at zero rotation, there exists a critical value of the rotation, which destroys the superconducting order. This behaviour is analogous to the emergence of a critical applied magnetic field and we show that the superconductor in fact produces the expected London field in the planar limit.

  17. The Holographic Superconductor Vortex

    E-Print Network [OSTI]

    Marc Montull; Alex Pomarol; Pedro J. Silva

    2009-09-02

    A gravity dual of a superconductor at finite temperature has been recently proposed. We present the vortex configuration of this model and study its properties. In particular, we calculate the free energy as a function of an external magnetic field, the magnetization and the superconducting density. We also find the two critical magnetic fields that define the region in which the vortex configurations are energetically favorable.

  18. American Range: Order (2014-CE-23006)

    Broader source: Energy.gov [DOE]

    DOE ordered American Range Corporation to pay a $8,000 civil penalty after finding American Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

  19. Classification and characterization of topological insulators and superconductors

    E-Print Network [OSTI]

    Mong, Roger

    2012-01-01

    fermions at the ends of superconductor vortices logical1.4 Topological superconductors . . . . . . . . . . .6.6.2 Example: p + ip superconductor (lattice model) . .

  20. A Dirty Holographic Superconductor

    E-Print Network [OSTI]

    Arean, Daniel; Zayas, Leopoldo A Pando; Landea, Ignacio Salazar; Scardicchio, Antonello

    2013-01-01

    We implement the effects of disorder on a holographic superconductor by introducing a random chemical potential on the boundary. We consider various realizations of disorder and find that $T_c$ is enhanced. We also present evidence for a precise form of renormalization in this system. Namely, when the random chemical potential is characterized by a power spectrum of the form $k^{-2\\alpha}$ we find that the power spectra of the condensate and the charge density are accurately and universally governed by linear functions of $\\alpha$.

  1. Plasmons in strong superconductors

    E-Print Network [OSTI]

    Marcello Baldo; Camille Ducoin

    2011-06-07

    We present a study of the possible plasmon excitations that can occur in systems where strong superconductivity is present. In these systems the plasmon energy is comparable to, or smaller than the pairing gap. As a prototype of these systems we consider the proton component of neutron star matter just below the crust when electron screening is not taken into account. For the realistic case we consider in detail the different aspects of the elementary excitations when the proton, electron components are considered within the Random Phase Approximation generalized to the superfluid case, while the influence of the neutron component is considered only at qualitative level. Electron screening plays a major role in modifying the proton spectrum and spectral function. At the same time the electron plasmon is strongly modified and damped by the indirect coupling with the superfluid proton component, even at moderately low values of the gap. The excitation spectrum shows the interplay of the different components and their relevance for each excitation mode. The results are relevant for neutrino physics and thermodynamical processes in neutron stars. If electron screening is neglected, the spectral properties of the proton component show some resemblance with the physical situation in high T$_c$ superconductors, and we briefly discuss similarities and differences in this connection. In a general prospect, the results of the study emphasize the role of Coulomb interaction in strong superconductors.

  2. Gauss-Bonnet Holographic Superconductors

    E-Print Network [OSTI]

    Luke Barclay; Ruth Gregory; Sugumi Kanno; Paul Sutcliffe

    2010-09-24

    We study holographic superconductors in five dimensional Einstein-Gauss-Bonnet gravity both numerically and analytically. We find the critical temperature of the superconductor decreases as backreaction is increased, although the effect of the Gauss-Bonnet coupling is more subtle: the critical temperature first decreases then increases as the coupling tends towards the Chern-Simons value in a backreaction dependent fashion. We compute the conductivity of the system, finding the energy gap, and show that the effect of both backreaction and higher curvature is to increase the gap ratio $\\omega_g/T_c$, thus there is no universal relation for these superconductors.

  3. BASF Corporate Energy Management Process 

    E-Print Network [OSTI]

    Geiger, T.

    2014-01-01

    North America 6 ESL-IE-14-05-30 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20-23, 2014 7Management Commitment Assess Performance & Set Goals Implement Action Plan Create Action Plan Recognize... Optimization (EM) 2009 Compressed Air Optimization (EM) 2009 Energy Efficiency Program (EM) Recognition: American Chemistry Council Responsible Care® Energy Efficiency Awards 2009 Corporate Energy Efficiency Improvement Goal 2010 Geismar Ethylene Oxide Plant...

  4. Holographic correspondence in topological superconductors

    E-Print Network [OSTI]

    Palumbo, Giandomenico

    2015-01-01

    We analytically derive a compatible family of effective field theories that uniquely describe topological superconductors in 3D, their 2D boundary and their 1D defect lines. We start by deriving the topological field theory of a 3D topological superconductor in class DIII, which is consistent with its symmetries. Then we identify the effective theory of a 2D topological superconductor in class D living on the gapped boundary of the 3D system. By employing the holographic correspondence we derive the effective chiral conformal field theory that describes the gapless modes living on the defect lines or effective boundary of the class D topological superconductor. We demonstrate that the chiral central charge is given in terms of the 3D winding number of the bulk which by its turn is equal to the Chern number of its gapped boundary.

  5. Modelling of bulk superconductor magnetization

    E-Print Network [OSTI]

    Ainslie, M. D.; Fujishiro, H.

    2015-03-30

    the physical mechanisms of their magnetization, to assist in interpretation of experimental results, and to predict the performance of practical bulk superconductor-based devices, which is particularly important as many superconducting applications head towards...

  6. Is a color superconductor topological?

    E-Print Network [OSTI]

    Nishida, Yusuke

    A fully gapped state of matter, whether insulator or superconductor, can be asked if it is topologically trivial or nontrivial. Here we investigate topological properties of superconducting Dirac fermions in 3D having a ...

  7. Preparation of superconductor precursor powders

    DOE Patents [OSTI]

    Bhattacharya, Raghunath (Littleton, CO)

    1998-01-01

    A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substrate electrode, and providing to the bath one or more soluble salts of one or more respective metals which are capable of exhibiting superconductor properties upon subsequent appropriate treatment. The bath is continually energized to cause the metallic and/or reduced particles formed at the electrode to drop as a powder from the electrode into the bath, and this powder, which is a precursor powder for superconductor production, is recovered from the bath for subsequent treatment. The process permits direct inclusion of all metals in the preparation of the precursor powder, and yields an amorphous product mixed on an atomic scale to thereby impart inherent high reactivity. Superconductors which can be formed from the precursor powder include pellet and powder-in-tube products.

  8. Holographic Superconductors with Various Condensates

    E-Print Network [OSTI]

    Gary T. Horowitz; Matthew M. Roberts

    2008-11-04

    We extend earlier treatments of holographic superconductors by studying cases where operators of different dimension condense in both 2+1 and 3+1 superconductors. We also compute a correlation length. We find surprising regularities in quantities such as $\\omega_g/T_c$ where $\\omega_g$ is the gap in the frequency dependent conductivity. In special cases, new bound states arise corresponding to vector normal modes of the dual near-extremal black holes.

  9. Multistrand superconductor cable

    DOE Patents [OSTI]

    Borden, A.R.

    1984-03-08

    Improved multistrand Rutherford-type superconductor cable is produced by using strands which are preformed, prior to being wound into the cable, so that each strand has a variable cross section, with successive portions having a substantially round cross section, a transitional oval cross section, a rectangular cross section, a transitional oval cross section, a round cross section and so forth, in repetitive cycles along the length of the strand. The cable is wound and flattened so that the portions of rectangular cross section extend across the two flat sides of the cable at the strand angle. The portions of round cross section are bent at the edges of the flattened cable, so as to extend between the two flat sides. The rectangular portions of the strands slide easil

  10. fermions in superconductors Dr. Carlo Beenakker

    E-Print Network [OSTI]

    Wu, Yih-Min

    fermions in superconductors Topic Speaker Dr. Carlo Beenakker Instituut-Lorentz, Leiden University as fundamental building blocks, but in superconductors they can be constructed out of electron and hole

  11. Spontaneous vortices in ferromagnet-superconductor systems 

    E-Print Network [OSTI]

    Wei, Hongduo

    2006-08-16

    We study the interaction between superconductors and ferromagnets in two systems: a ferromagnet-superconductor bilayer, and a thin superconducting film with a periodic array of magnetic dots upon it, with spontaneous vortices appearing...

  12. INELASTIC LIGHT SCATTERING STUDIES OF BOROCARBIDE SUPERCONDUCTORS

    E-Print Network [OSTI]

    Yang, In-Sang

    INELASTIC LIGHT SCATTERING STUDIES OF BOROCARBIDE SUPERCONDUCTORS IN­SANG YANG Department In recent years of studies in ``unconventional'' superconductivity, researchers have concentrated on exotic behavior of the heavy fermion and cuprate su­ perconductors. However, even superconductors that are thought

  13. Process for fabricating continuous lengths of superconductor

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    1998-01-01

    A process for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor precursor between said first substrate ribbon and said second substrates ribbon. The layered superconductor precursor is then heat treated to form a super conductor layer.

  14. Theory of Quantum Oscillations in Cuprate Superconductors

    E-Print Network [OSTI]

    Eun, Jonghyoun

    2012-01-01

    Cuprate Superconductors . . . . . . . . . . . . . . . . . .J. Schried?er. Theory of superconductivity. Phys. Rev. , [Tinkham. Introduction to Superconductivity. Dover, New York,

  15. Investigation of electrons interaction in a superconductor

    E-Print Network [OSTI]

    Iogann Tolbatov

    2009-10-21

    Investigating the interaction of electrons in a superconductor by means of a method of solitary waves of Korteweg - de Vries, we refute the claim of absence of "Cooper pairs" in a superconductor. We also indicate that the nondissipative transfer of energy in the superconductor is possible only with the help of a pair of electrons.

  16. Inelastic Tunneling Spectroscopy in Unconventional Superconductors

    E-Print Network [OSTI]

    Inelastic Tunneling Spectroscopy in Unconventional Superconductors Molecular Vibration and Single Superconductors ­ p.1/13 #12;Old Results R.C. Jaklevic and J. Lambe, Phys. Rev. Lett. 17, 1139-1140 (1966 in Unconventional Superconductors ­ p.2/13 #12;STM observation of local inelastic mode B.C. Stipe, M.A Rezaei, and W

  17. Gravitoelectromagnetism and Dark Energy in Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2006-07-03

    A gravitomagnetic analogue of the London moment in superconductors can explain the anomalous Cooper pair mass excess reported by Janet Tate. Ultimately the gravitomagnetic London moment is attributed to the breaking of the principle of general covariance in superconductors. This naturally implies non-conservation of classical energy-momentum. Possible relation with the manifestation of dark energy in superconductors is questioned.

  18. Hard-gapped Holographic Superconductors

    E-Print Network [OSTI]

    Pallab Basu; Jianyang He; Anindya Mukherjee; Hsien-Hang Shieh

    2009-12-05

    In this work we discuss the zero temperature limit of a "p-wave" holographic superconductor. The bulk description consists of a non-Abelian SU(2) gauge fields minimally coupled to gravity. We numerically construct the zero temperature solution which is the gravity dual of the superconducting ground state of the "p-wave" holographic superconductors. The solution is a smooth soliton with zero horizon size and shows an emergent conformal symmetry in the IR. We found the expected superconducting behavior. Using the near horizon analysis we show that the system has a "hard gap" for the relevant gauge field fluctuations. At zero temperature the real part of the conductivity is zero for an excitation frequency less than the gap frequency. This is in contrast with what has been observed in similar scalar- gravity-gauge systems (holographic superconductors). We also discuss the low but finite temperature behavior of our solution.

  19. Thin film superconductor magnetic bearings

    DOE Patents [OSTI]

    Weinberger, Bernard R. (Avon, CT)

    1995-12-26

    A superconductor magnetic bearing includes a shaft (10) that is subject to a load (L) and rotatable around an axis of rotation, a magnet (12) mounted to the shaft, and a stator (14) in proximity to the shaft. The stator (14) has a superconductor thin film assembly (16) positioned to interact with the magnet (12) to produce a levitation force on the shaft (10) that supports the load (L). The thin film assembly (16) includes at least two superconductor thin films (18) and at least one substrate (20). Each thin film (18) is positioned on a substrate (20) and all the thin films are positioned such that an applied magnetic field from the magnet (12) passes through all the thin films. A similar bearing in which the thin film assembly (16) is mounted on the shaft (10) and the magnet (12) is part of the stator (14) also can be constructed.

  20. Apparatus for fabricating continuous lengths of superconductor

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    2002-01-01

    A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

  1. Apparatus for fabricating continuous lengths of superconductor

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    2001-01-01

    A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

  2. High temperature superconductor current leads

    DOE Patents [OSTI]

    Hull, John R. (Hinsdale, IL); Poeppel, Roger B. (Glen Ellyn, IL)

    1995-01-01

    An electrical lead having one end for connection to an apparatus in a cryogenic environment and the other end for connection to an apparatus outside the cryogenic environment. The electrical lead includes a high temperature superconductor wire and an electrically conductive material distributed therein, where the conductive material is present at the one end of the lead at a concentration in the range of from 0 to about 3% by volume, and at the other end of the lead at a concentration of less than about 20% by volume. Various embodiments are shown for groups of high temperature superconductor wires and sheaths.

  3. Backreacting p-wave Superconductors

    E-Print Network [OSTI]

    Raúl E. Arias; Ignacio Salazar Landea

    2013-01-28

    We study the gravitational backreaction of the non-abelian gauge field on the gravity dual to a 2+1 p-wave superconductor. We observe that as in the $p+ip$ system a second order phase transition exists between a superconducting and a normal state. Moreover, we conclude that, below the phase transition temperature $T_c$ the lowest free energy is achieved by the p-wave solution. In order to probe the solution, we compute the holographic entanglement entropy. For both $p$ and $p+ip$ systems the entanglement entropy satisfies an area law. For any given entangling surface, the p-wave superconductor has lower entanglement entropy.

  4. Universality class of holographic superconductors

    E-Print Network [OSTI]

    Kengo Maeda; Makoto Natsuume; Takashi Okamura

    2010-05-14

    We study "holographic superconductors" in various spacetime dimensions. We compute most of the static critical exponents in the linear perturbations and show that they take the standard mean-field values. We also consider the dynamic universality class for these models and show that they belong to model A with dynamic critical exponent z=2.

  5. Preparation of superconductor precursor powders

    DOE Patents [OSTI]

    Bhattacharya, Raghunath (Littleton, CO); Blaugher, Richard D. (Evergreen, CO)

    1995-01-01

    A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substrate electrode, and providing to the bath one or more soluble salts of one or more respective metals, such as nitrate salts of thallium, barium, calcium, and copper, which are capable of exhibiting superconductor properties upon subsequent appropriate treatment. The bath is continually energized to cause the metallic particles formed at the electrode to drop as a powder from the electrode into the bath, and this powder, which is a precursor powder for superconductor production, is recovered from the bath for subsequent treatment. The process permits direct inclusion of thallium in the preparation of the precursor powder, and yields an amorphous product mixed on an atomic scale to thereby impart inherent high reactivity. Superconductors which can be formed from the precursor powder include pellet and powder-in-tube products.

  6. Possible Pressure Effect for Superconductors

    E-Print Network [OSTI]

    A. Kwang-Hua Chu

    2005-08-30

    We make an estimate of the possible range of $\\Delta T_c$ induced by high-pressure effects in post-metallic superconductors by using the theory of {\\it extended irreversible/reversible thermodynamics} and Pippard's length scale. The relationship between the increment of the superconducting temperature and the increase of the pressure is parabolic.

  7. Preparation of superconductor precursor powders

    DOE Patents [OSTI]

    Bhattacharya, R.

    1998-08-04

    A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substrate electrode, and providing to the bath one or more soluble salts of one or more respective metals which are capable of exhibiting superconductor properties upon subsequent appropriate treatment. The bath is continually energized to cause the metallic and/or reduced particles formed at the electrode to drop as a powder from the electrode into the bath, and this powder, which is a precursor powder for superconductor production, is recovered from the bath for subsequent treatment. The process permits direct inclusion of all metals in the preparation of the precursor powder, and yields an amorphous product mixed on an atomic scale to thereby impart inherent high reactivity. Superconductors which can be formed from the precursor powder include pellet and powder-in-tube products. 7 figs.

  8. New High-Temperature Superconductors

    E-Print Network [OSTI]

    Xie, Xiaoliang Sunney

    -TEMPERATURE superconductors, materials that carry electricity without resistance at temperatures inexplicably far above one finds its target. Computa- tional biologists in Germany and the United States offered bold new plenty going for them. They're abundant and carbon-free, and their prices are dropping. But they're part

  9. Response of High-Tc Superconductor Metamaterials to High Intensity...

    Office of Scientific and Technical Information (OSTI)

    Conference: Response of High-Tc Superconductor Metamaterials to High Intensity THz Radiation Citation Details In-Document Search Title: Response of High-Tc Superconductor...

  10. A15 MULTIFILAMENTARY SUPERCONDUCTORS BY THE INFILTRATION PROCESS

    E-Print Network [OSTI]

    Pickus, M.R.

    2010-01-01

    A15 MULT1FILAMENTARY SUPERCONDUCTORS BY THE INFILTRATIONmultifilamentary superconductors based on both binary andfor the preparation of superconducting tapes and wires. The

  11. Neutron scattering of iron-based superconductors (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Neutron scattering of iron-based superconductors Citation Details In-Document Search Title: Neutron scattering of iron-based superconductors Low-energy spin excitations have been...

  12. Impurity states in multiband s -wave superconductors: Analysis...

    Office of Scientific and Technical Information (OSTI)

    Impurity states in multiband s -wave superconductors: Analysis of iron pnictides Citation Details In-Document Search Title: Impurity states in multiband s -wave superconductors:...

  13. Temperature dependence of impurity resonances in cuprate superconductors

    E-Print Network [OSTI]

    Chatterjee, Kamalesh

    2009-01-01

    In conventional superconductors the superconducting gap in the electronic excitation spectrum prevents scattering of low energy electrons. In high temperature superconductors (HTS) an additional gap, the pseudogap, develops ...

  14. Electromagnetic Dark Energy and Gravitoelectrodynamics of Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2007-10-29

    It is shown that Beck and Mackey electromagnetic model of dark energy in superconductors can account for the non-classical inertial properties of superconductors, which have been conjectured by the author to explain the Cooper pair's mass excess reported by Cabrera and Tate. A new Einstein-Planck regime for gravitation in condensed matter is proposed as a natural scale to host the gravitoelectrodynamic properties of superconductors.

  15. Anomalous energy transport across topological insulator superconductor...

    Office of Scientific and Technical Information (OSTI)

    Anomalous energy transport across topological insulator superconductor junctions Citation Details In-Document Search Title: Anomalous energy transport across topological insulator...

  16. Shielding superconductors with thin films

    E-Print Network [OSTI]

    Posen, Sam; Catelani, Gianluigi; Liepe, Matthias U; Sethna, James P

    2015-01-01

    Determining the optimal arrangement of superconducting layers to withstand large amplitude AC magnetic fields is important for certain applications such as superconducting radiofrequency cavities. In this paper, we evaluate the shielding potential of the superconducting film/insulating film/superconductor (SIS') structure, a configuration that could provide benefits in screening large AC magnetic fields. After establishing that for high frequency magnetic fields, flux penetration must be avoided, the superheating field of the structure is calculated in the London limit both numerically and, for thin films, analytically. For intermediate film thicknesses and realistic material parameters we also solve numerically the Ginzburg-Landau equations. It is shown that a small enhancement of the superheating field is possible, on the order of a few percent, for the SIS' structure relative to a bulk superconductor of the film material, if the materials and thicknesses are chosen appropriately.

  17. The Courts in American Public Culture

    E-Print Network [OSTI]

    Silbey, Susan S.

    In American public imagination, courts are powerful but also impotent. They are guardians of citizens' rights but also agents of corporate wealth; simultaneously the least dangerous branch and the ultimate arbiters of ...

  18. Overview of Crystalline Color Superconductors

    E-Print Network [OSTI]

    Mannarelli, Massimo

    2015-01-01

    Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry is broken down to a discrete symmetry, the system is typically named a crystal. We breifly review crystalline color superconductors, which arise in cold quark matter with mismatched Fermi spheres.

  19. Overview of Crystalline Color Superconductors

    E-Print Network [OSTI]

    Massimo Mannarelli

    2015-05-19

    Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry is broken down to a discrete symmetry, the system is typically named a crystal. We breifly review crystalline color superconductors, which arise in cold quark matter with mismatched Fermi spheres.

  20. Modified Entropic Gravitation in Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2011-08-19

    Verlinde recently developed a theoretical account of gravitation in terms of an entropic force. The central element in Verlinde's derivation is information and its relation with entropy through the holographic principle. The application of this approach to the case of superconductors requires to take into account that information associated with superconductor's quantum vacuum energy is not stored on Planck size surface elements, but in four volume cells with Planck-Einstein size. This has profound consequences on the type of gravitational force generated by the quantum vacuum condensate in superconductors, which is closely related with the cosmological repulsive acceleration responsible for the accelerated expansion of the Universe. Remarkably this new gravitational type force depends on the level of breaking of the weak equivalence principle for cooper pairs in a given superconducting material, which was previously derived by the author starting from similar principles. It is also shown that this new gravitational force can be interpreted as a surface force. The experimental detection of this new repulsive gravitational-type force appears to be challenging.

  1. The electrodynamics of oxide superconductors

    SciTech Connect (OSTI)

    Anlage, S.M.; Pambianchi, M.; Findikoglu, A.T.

    1994-12-31

    The authors present a brief review of results on the surface impedance of cuprate superconductors, focusing mainly on YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} (YBCO) and evidence of d-wave superconductivity in that material. They then discuss the recent results on BaK-Bi-O thin films, and the effects of DC electric fields on the surface impedance of YBCO films. A summary of their data on high quality thin films and single crystals of the electron-doped Nd{sub 1.85}Ce{sub 0.15}Ce{sub 0.15}CuO{sub 4{minus}{delta}} (NCCO) cuprate superconductor follows. Surprisingly, the measurements on NCCO are consistent with the behavior of an s-wave BCS superconductor, in striking contrast to recent results on YBCO. Finally they discuss some of the interesting potential implications of d-wave superconductivity for microwave applications of the cuprates.

  2. Corporate sustainability assessment methodology

    E-Print Network [OSTI]

    Pinchuk, Natallia

    2011-01-01

    Sustainability is a vague concept specifically in the context of a corporate world. There are numerous definitions for corporate sustainability and just as many ways of evaluating it. This work attempts to define, structure ...

  3. Essays on corporate bonds

    E-Print Network [OSTI]

    Bao, Jack (Jack C.)

    2009-01-01

    This thesis consists of three empirical essays on corporate bonds, examining the role of both credit risk and liquidity. In the first chapter, I test the ability of structural models of default to price corporate bonds in ...

  4. Indianapolis Public Transportation Corporation

    SciTech Connect (OSTI)

    Not Available

    2004-12-01

    Fact sheet describes the National Renewable Energy Laboratory's evaluation of Indianapolis Public Transportation Corporation's (IndyGo's) hybrid electric buses.

  5. CORPORATIONS APAC Tennessee Incorporated

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    Business Resources Breast Cancer Eradication Initiative Incorporated Brother International Corporation Resources Incorporated ETI Corporation Corporate and Foundation Giving The University of Memphis is grateful Family of Companies KPMG Peat Marwick LLP Knox Music Incorporated Frank Ricks/Looney Ricks Kiss Lane

  6. Gravitational force between two electrons in superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2007-11-19

    The attractive gravitational force between two electrons in superconductors is deduced from the Eddington-Dirac large number relation, together with Beck and Mackey electromagnetic model of vacuum energy in superconductors. This force is estimated to be weaker than the gravitational attraction between two electrons in the vacuum.

  7. Enhancement of mechanical properties of 123 superconductors

    DOE Patents [OSTI]

    Balachandran, Uthamalingam (Hinsdale, IL)

    1995-01-01

    A composition and method of preparing YBa.sub.2 Cu.sub.3 O.sub.7-x superconductor. Addition of tin oxide containing compounds to YBCO superconductors results in substantial improvement of fracture toughness and other mechanical properties without affect on T.sub.c. About 5-20% additions give rise to substantially improved mechanical properties.

  8. Enhancement of mechanical properties of 123 superconductors

    DOE Patents [OSTI]

    Balachandran, U.

    1995-04-25

    A composition and method are disclosed of preparing YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} superconductor. Addition of tin oxide containing compounds to YBCO superconductors results in substantial improvement of fracture toughness and other mechanical properties without affect on T{sub c}. About 5-20% additions give rise to substantially improved mechanical properties.

  9. High Magnetic Field Multipoles Generated by Superconductor Magnetization within a Set of Nested Superconducting Correction Coils

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    magnetization of the superconductor in the long correctorsMultipoles Generated by Superconductor Magnetization WithinMULTIPOLES GENERATED BY SUPERCONDUCTOR MAGNETIZATION WITHIN

  10. Passive Superconductor: A Viable Method of Controlling Magnetization Multipoles in the SSC Dipole

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    superconductor is required for passive correction than wouldcoils. ) The case of passive superconductor to correct thecommunication on the use of a passive superconductor to

  11. Correction of Magnetization Sextupole and Decapole in a 5 Centimeter Bore SSC Dipole Using Passive Superconductor

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    The Idea of Passive Superconductor Correction," presented aton the Fermilab Passive Superconductor Test," ICFA Workshop,methods of passive superconductor correction will reduce

  12. To Crack or Not to Crack: Strain in High Temperature Superconductors

    E-Print Network [OSTI]

    Godeke, Arno

    2008-01-01

    in High Temperature Superconductors Arno Godeke August 22,in High Temperature Superconductors Motivation Magneticin High Temperature Superconductors How do Nb 3 Sn magnets

  13. North American Electric Reliability Corporation Interconnections |

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | Department of0DOEDepartment ofNon-ProliferationConsiderations from

  14. North American Electric Reliability Corporation (NERC): Reliability

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing853926 News en INFOGRAPHIC: HowFranklin OrrSamplingof

  15. North American Electric Reliability Corporation Interconnections |

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartmentNew Jersey isDepartmentGasFacilityEnergy

  16. American Hydrogen Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump to: navigation,OpenTechnologies Inc Jump

  17. Generalized Superconductors and Holographic Optics

    E-Print Network [OSTI]

    Subhash Mahapatra; Prabwal Phukon; Tapobrata Sarkar

    2014-03-31

    We study generalized holographic s-wave superconductors in four dimensional R-charged black hole and Lifshitz black hole backgrounds, in the probe limit. We first establish the superconducting nature of the boundary theories, and then study their optical properties. Numerical analysis indicates that a negative Depine-Lakhtakia index may appear at low frequencies in the theory dual to the R-charged black hole, for certain temperature ranges, for specific values of the charge parameter. The corresponding cut-off values for these are numerically established in several cases. Such effects are seen to be absent in the Lifshitz background where this index is always positive.

  18. Holographic Superconductors with Lifshitz Scaling

    E-Print Network [OSTI]

    E. J. Brynjolfsson; U. H. Danielsson; L. Thorlacius; T. Zingg

    2010-03-27

    Black holes in asymptotically Lifshitz spacetime provide a window onto finite temperature effects in strongly coupled Lifshitz models. We add a Maxwell gauge field and charged matter to a recently proposed gravity dual of 2+1 dimensional Lifshitz theory. This gives rise to charged black holes with scalar hair, which correspond to the superconducting phase of holographic superconductors with z > 1 Lifshitz scaling. Along the way we analyze the global geometry of static, asymptotically Lifshitz black holes at arbitrary critical exponent z > 1. In all known exact solutions there is a null curvature singularity in the black hole region, and, by a general argument, the same applies to generic Lifshitz black holes.

  19. Holographic superconductors with hyperscaling violation

    E-Print Network [OSTI]

    ZhongYing Fan

    2013-08-18

    We investigate holographic superconductors in asympototically geometries with hyperscaling violation. The mass of the scalar field decouples from the UV dimension of the dual scalar operator and can be chosen as negative as we want, without disturbing the Breitenlohner-Freedman bound. We first numerically find that the scalar condenses below a critical temperature and a gap opens in the real part of the conductivity, indicating the onset of superconductivity. We further analytically explore the effects of the hyperscaling violation on the superconducting transition temperature. We find that the critical temperature increases with the increasing of hyperscaling violation.

  20. Fermi-liquid damping and NMR relaxation in superconductors

    SciTech Connect (OSTI)

    Tewari, S.; Ruvalds, J.

    1996-03-01

    Electron collisions for a two-dimensional Fermi-liquid (FL) are shown to give a quasiparticle damping with interesting frequency and temperature variations in the BCS superconducting state. The spin susceptibility which determines the structure of the damping is analyzed in the normal state for a Hubbard model with a constant on-site Coulomb repulsion. This is then generalized to the superconducting state by including coherence factors and self-energy and vertex corrections. Calculations of the NMR relaxation rate reveal that the FL damping structure can reduce the Hebel-Slichter peak, in agreement with data on the organic superconductor (MDT-TTF){sub 2}AuI{sub 2} (methylenedithiotetrathiafulvalene salt). However, the strongly suppressed FL damping in the superconducting state does not eliminate the Hebel-Slichter peak, and thus suggests that other mechanisms are needed to explain the NMR data on (TMTSF){sub 2}ClO{sub 4} (bistetramethyltetraselenafulvaleneperchlorate), the BEDT organic compounds, and cuprate superconductors. Predictions of the temperature variation of the damping and the spin response are given over a wide frequency range as a guide to experimental probes of the symmetry of the superconducting pairs. {copyright} {ital 1996 The American Physical Society.}

  1. Barriers to Mobility: The Lockout Effect of U.S. Taxation of Worldwide Corporate Profits

    E-Print Network [OSTI]

    Graham, John R.

    Using data from a survey of tax executives, we examine the corporate response to the one-time dividends received deduction in the American Jobs Creation Act of 2004. We describe the firms’ reported sources and uses of the ...

  2. Method to improve superconductor cable

    DOE Patents [OSTI]

    Borden, A.R.

    1984-03-08

    A method is disclosed of making a stranded superconductor cable having improved flexing and bending characteristics. In such method, a plurality of superconductor strands are helically wound around a cylindrical portion of a mandrel which tapers along a transitional portion to a flat end portion. The helically wound strands form a multistrand hollow cable which is partially flattened by pressure rollers as the cable travels along the transitional portion. The partially flattened cable is impacted with repeated hammer blows as the hollow cable travels along the flat end portion. The hammer blows flatten both the internal and the external surfaces of the strands. The cable is fully flattened and compacted by two sets of pressure rollers which engage the flat sides and the edges of the cable after it has traveled away from the flat end portion of the mandrel. The flattened internal surfaces slide easily over one another when the cable is flexed or bent so that there is very little possibility that the cable will be damaged by the necessary flexing and bending required to wind the cable into magnet coils.

  3. Synthesis of highly phase pure BSCCO superconductors

    DOE Patents [OSTI]

    Dorris, Stephen E. (La Grange Park, IL); Poeppel, Roger B. (Glen Ellyn, IL); Prorok, Barton C. (Harrisville, PA); Lanagan, Michael T. (Woodridge, IL); Maroni, Victor A. (Naperville, IL)

    1995-01-01

    An article and method of manufacture of (Bi, Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor.

  4. Synthesis of highly phase pure BSCCO superconductors

    DOE Patents [OSTI]

    Dorris, S.E.; Poeppel, R.B.; Prorok, B.C.; Lanagan, M.T.; Maroni, V.A.

    1995-11-21

    An article and method of manufacture (Bi, Pb)-Sr-Ca-Cu-O superconductor are disclosed. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor. 5 figs.

  5. Magnetic properties of two-phase superconductors

    E-Print Network [OSTI]

    E. Di Grezia; S. Esposito; G. Salesi

    2007-09-17

    We have recently proposed a theoretical model for superconductors endowed with two distinct superconducting phases, described by two scalar order parameters which condensate at different critical temperatures. On analyzing the magnetic behavior of such systems, we have found some observable differences with respect to the case of ordinary Ginzburg-Landau superconductors. In particular, at low temperature the London penetration length is strongly reduced and the Ginzburg-Landau parameter k becomes a function of temperature. By contrast, in the temperature region between the two phase transitions k is constant and the system is a type-I or a type-II superconductor depending on the ratio between the critical temperatures.

  6. Effect of fractons in strongly coupled superconductors

    SciTech Connect (OSTI)

    Tewari, S.P.; Gumber, P.K. )

    1990-02-01

    The effect of fractons on strongly coupled superconductors has been studied using both McMillan's equation and Kresin's equation which is valid for any arbitrary value of {lambda}. Contrary to common belief it is found that there is no significant increase in {ital T}{sub {ital c}} when the crystal lattice is changed into a fractal lattice. However, under certain conditions there may be a substantial increase in the critical temperature in the fractal superconductor over its value in the corresponding crystalline superconductor.

  7. Data Mining Group VNG Corporation

    E-Print Network [OSTI]

    Shahabi, Cyrus

    Data Mining Group VNG Corporation Data Mining Group_VNG Corporation 1 #12;Data Mining Group_VNG Corporation 2 1 ·Introduction 2 ·Edge Rank 3 ·Parameter Estimate 4 ·Conclusion #12;Data Mining Group_VNG Corporation 3 #12;Data Mining Group_VNG Corporation 4 #12; User's self activity Update status Write blogs

  8. 5. Wick, O. J. (ed.) Plutonium Handbook: a Guide to the Technology 3357 (American Nuclear Society, LaGrange Park, IL, 1980).

    E-Print Network [OSTI]

    5. Wick, O. J. (ed.) Plutonium Handbook: a Guide to the Technology 33­57 (American Nuclear Society superconductors. Phys. Rev. Lett. 8, 250­253 (1962). 11. Wolfer, W. G. Radiation effects in plutonium. Los Alamos

  9. Electron Correlation in Iron-Based Superconductors

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the deepest mysteries in modern physics-the mechanism of superconductivity in the copper-based "high-temperature superconductors." One clue lies in whether the electrons in...

  10. Electronic Applications of High Temperature Superconductors 

    E-Print Network [OSTI]

    Kroger, H.; Miracky, R. F.

    1988-01-01

    of the high temperature superconductors in advanced radar systems. The low loss microwave properties of superconductors have already been exploited by Lincoln Laboratory in demonstrating signal processing systems whose capabilities greatly exceed any... from estimates of its surface im pedance for naturally occurring low-frequency electromagnetic waves. Low-frequen y (10. 3 to let Hz) fluctuations in the earth's magnetic field induce eddy currents at its surface; the size of the induced voltage...

  11. Corporate Headquarters 317 Route 104

    E-Print Network [OSTI]

    Firestone, Jeremy

    Sustainable Energy Developments, Inc. is a New York Corporation Founded April 2002 Visualization Phone: (978) 422 7744 Sustainable Energy Developments, Inc. is a New York Corporation Founded Energy Developments, Inc. is a New York Corporation Founded April 2002

  12. Entropy balance in holographic superconductors

    E-Print Network [OSTI]

    Sean A. Hartnoll; Razieh Pourhasan

    2012-05-07

    In systems undergoing second order phase transitions, the temperature integral of the specific heat over temperature from zero to the critical temperature is the same in both the normal and ordered phases. This entropy balance relates the critical temperature to the distribution of degrees of freedom in the normal and ordered states. Quantum criticality and fractionalization can imply an increased number of low energy degrees of freedom in both the normal and ordered states. We explore the role of entropy balance in holographic models of superconductivity, focussing on the interplay between quantum criticality and superconductivity. We consider models with and without a ground state entropy density in the normal phase; the latter models are a new class of holographic superconductors. We explain how a normal phase entropy density manifests itself in the stable superconducting phase.

  13. Ferropnictide superconductors, i.e., superconductors that contain Fe and As, have superconducting transition

    E-Print Network [OSTI]

    Weston, Ken

    Ferropnictide superconductors, i.e., superconductors that contain Fe and As, have superconducting of these materials could not carry a large superconducting current because grain boundaries reduce the critical Hellstrom (DMR-Award 1006584) and Gregory S. Boebinger (DMR-Award 0654118) Applied Superconductivity Center

  14. Superconductors

    SciTech Connect (OSTI)

    Safa-Sefat, Athena

    2014-04-21

    Athena Safa-Sefat explains how scientists are improving the superconductivity of materials and eliminating wasted energy.

  15. Superconductors

    ScienceCinema (OSTI)

    Safa-Sefat, Athena

    2014-07-23

    Athena Safa-Sefat explains how scientists are improving the superconductivity of materials and eliminating wasted energy.

  16. Rutgers Business School Professor Simi Kedia Corporate Finance

    E-Print Network [OSTI]

    . 3. Final: 50%. 1. Capital Structure ***Franco Modigliani and Merton Miller, 1958, The cost of capital, corporation finance and the theory of investment, American Economic Review. ***S. Myers and N not have, Journal of Financial Economics, 13, 187-221 ***S. Myers, The capital structure puzzle, Journal

  17. Studies of Nonlinear Electrodynamics of High-Tempearture Superconductors

    E-Print Network [OSTI]

    Lam, Q.-C.H.

    2009-01-01

    editors, Novel Superconductivity, Press. R.L. Peterson andof High Temperature Superconductors. World Scientific, J.C.Physics of High-Tc Superconductors. C.P. Poole, Jr. , T.

  18. The critical temperature of superconductor and its electronic specific heat

    E-Print Network [OSTI]

    B. V. Vasiliev

    2010-08-09

    It is shown that the critical temperature of the superconductor is related to the Sommerfeld constant, i.e. it is determined by the Fermi energy for I-type superconductors. The estimation of properties of II-type superconductors reveals a somewhat different relation of critical temperature and Fermi energy. Among the high-temperature superconducting ceramics there are the both - I and II - types superconductors.

  19. Fermion correlators in non-abelian holographic superconductors

    E-Print Network [OSTI]

    Steven S. Gubser; Fabio D. Rocha; Amos Yarom

    2010-02-24

    We consider fermion correlators in non-abelian holographic superconductors. The spectral function of the fermions exhibits several interesting features such as support in displaced Dirac cones and an asymmetric distribution of normal modes. These features are compared to similar ones observed in angle resolved photoemission experiments on high T_c superconductors. Along the way we elucidate some properties of p-wave superconductors in AdS_4 and discuss the construction of SO(4) superconductors.

  20. Equilibrium and non-equilibrium properties of superfluids and superconductors

    E-Print Network [OSTI]

    Walter F. Wreszinski

    2015-07-05

    We review some rigorous results on the equilibrium and non-equilibrium properties of superfluids and superconductors.

  1. Equilibrium and non-equilibrium properties of superfluids and superconductors

    E-Print Network [OSTI]

    Walter F. Wreszinski

    2015-06-26

    We review some rigorous results on the equilibrium and non-equilibrium properties of superfluids and superconductors.

  2. Sealed glass coating of high temperature ceramic superconductors

    DOE Patents [OSTI]

    Wu, Weite (Tainan, TW); Chu, Cha Y. (Garnerville, NY); Goretta, Kenneth C. (Downers Grove, IL); Routbort, Jules L. (Darien, IL)

    1995-01-01

    A method and article of manufacture of a lead oxide based glass coating on a high temperature superconductor. The method includes preparing a dispersion of glass powders in a solution, applying the dispersion to the superconductor, drying the dispersion before applying another coating and heating the glass powder dispersion at temperatures below oxygen diffusion onset and above the glass melting point to form a continuous glass coating on the superconductor to establish compressive stresses which enhance the fracture strength of the superconductor.

  3. Fusion: Intro Fusion: Numerics and Asymptotics Fusion: Summary Superconductor: Problem Superconductor: Results Investigation into the Feasibility and

    E-Print Network [OSTI]

    Fournier, John J.F.

    Fusion: Intro Fusion: Numerics and Asymptotics Fusion: Summary Superconductor: Problem Superconductor: Results Investigation into the Feasibility and Operation of a Magnetized Target Fusion Reactor, Committee Member May 7, 2015 Michael Lindstrom Magnetized Target Fusion and Field Perturbations #12;Fusion

  4. Anisotropy of strong pinning in multi-band superconductors

    E-Print Network [OSTI]

    Boyer, Edmond

    pinning in multi-band superconductors 2 1. Introduction The multi-band nature of superconductivity in iron the anisotropy of superconducting parameters in the iron-based superconductors. In particular, Kidzun et al. [23Anisotropy of strong pinning in multi-band superconductors C.J. van der Beek, M. Konczykowski

  5. Rotating superconductor magnet for producing rotating lobed magnetic field lines

    DOE Patents [OSTI]

    Hilal, Sadek K. (Englewood Cliffs, NJ); Sampson, William B. (Bellport, NY); Leonard, Edward F. (Leonia, NJ)

    1978-01-01

    This invention provides a rotating superconductor magnet for producing a rotating lobed magnetic field, comprising a cryostat; a superconducting magnet in the cryostat having a collar for producing a lobed magnetic field having oppositely directed adjacent field lines; rotatable support means for selectively rotating the superconductor magnet; and means for energizing the superconductor magnet.

  6. Topological insulators and superconductors Xiao-Liang Qi

    E-Print Network [OSTI]

    Wu, Zhigang

    Topological insulators and superconductors Xiao-Liang Qi Microsoft Research, Station Q, Elings Hall and the topological field theory are discussed. Topological superconductors have a full pairing gap in the bulk and gapless surface states consisting of Majorana fermions. The theory of topological superconductors

  7. Rutgers Business School Corporate Finance

    E-Print Network [OSTI]

    Lin, Xiaodong

    Rutgers Business School Corporate Finance Fall 2014 Instructor: Vikram Nanda Office: 5186 to the basic and current research questions and methods ­ theoretical and empirical ­ in corporate finance areas in corporate finance. Among these: · Tirole, Corporate Finance · Finance Handbooks such as: Jarrow

  8. Ferromagnetic Material in the Superconductor and Its Effect on the Magnetization Sextupole and Decapole in the SSC Dipoles at Injection

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    SSC dipole magnets due to superconductor magnetization usingmaterial in the superconductor matrix," Lawrence Berkeleyof the fields due to superconductor magnetization in the SSC

  9. Antecedents of corporate volunteerism 

    E-Print Network [OSTI]

    Henning, Jaime Blaine

    2009-05-15

    with volunteering in general, few studies have examined variables beyond simple demographics, and fewer still have examined antecedents of corporate volunteering. In the current study, the theory of planned behavior, functional motives for volunteering...

  10. Island Wide Management Corporation

    Office of Legacy Management (LM)

    9 1986 Island Wide Management Corporation 3000 Marcus Avenue Lake Success, New York 11042 Dear Sir or Madam: I am sending you this letter and the enclosed information as you have...

  11. Scanning the Parameter Space of Holographic Superconductors

    E-Print Network [OSTI]

    Obinna C. Umeh

    2009-07-17

    We study various physical quantities associated with holographic s-wave superconductors as functions of the scaling dimensions of the dual condensates. A bulk scalar field with negative mass squared $m^2$, satisfying the Breitenlohner-Freedman stability bound and the unitarity bound, and allowed to vary in $0.5$ unit intervals, were considered. We observe that all the physical quantities investigated are sensitive to the scaling dimensions of the dual condensates. For all the $m^2$, the characteristic lengths diverge at the critical temperature in agreement with the Ginzburg-Landau theory. The Ginzburg-Landau parameter, obtained from these length scales indicates that the holographic superconductors can be type I or type II depending on the charge and the scaling dimensions of the dual condensates. For a fixed charge, there exists a critical scaling dimension, above which a holographic superconductor is type I, below which it becomes a type II.

  12. Fracture toughness for copper oxide superconductors

    DOE Patents [OSTI]

    Goretta, Kenneth C. (Downers Grove, IL); Kullberg, Marc L. (Lisle, IL)

    1993-01-01

    An oxide-based strengthening and toughening agent, such as tetragonal Zro.sub.2 particles, has been added to copper oxide superconductors, such as superconducting YBa.sub.2 Cu.sub.3 O.sub.x (123) to improve its fracture toughness (K.sub.IC). A sol-gel coating which is non-reactive with the superconductor, such as Y.sub.2 BaCuO.sub.5 (211) on the ZrO.sub.2 particles minimized the deleterious reactions between the superconductor and the toughening agent dispersed therethrough. Addition of 20 mole percent ZrO.sub.2 coated with 211 yielded a 123 composite with a K.sub.IC of 4.5 MPa(m).sup.0.5.

  13. Fracture toughness for copper oxide superconductors

    DOE Patents [OSTI]

    Goretta, K.C.; Kullberg, M.L.

    1993-04-13

    An oxide-based strengthening and toughening agent, such as tetragonal ZrO[sub 2] particles, has been added to copper oxide superconductors, such as superconducting YBa[sub 2]Cu[sub 3]O[sub x] (123) to improve its fracture toughness (K[sub IC]). A sol-gel coating which is non-reactive with the superconductor, such as Y[sub 2]BaCuO[sub 5] (211) on the ZrO[sub 2] particles minimized the deleterious reactions between the superconductor and the toughening agent dispersed therethrough. Addition of 20 mole percent ZrO[sub 2] coated with 211 yielded a 123 composite with a K[sub IC] of 4.5 MPa(m)[sup 0.5].

  14. Surface texturing of superconductors by controlled oxygen pressure

    DOE Patents [OSTI]

    Chen, Nan (Downers Grove, IL); Goretta, Kenneth C. (Downers Grove, IL); Dorris, Stephen E. (La Grange Park, IL)

    1999-01-01

    A method of manufacture of a textured layer of a high temperature superconductor on a substrate. The method involves providing an untextured high temperature superconductor material having a characteristic ambient pressure peritectic melting point, heating the superconductor to a temperature below the peritectic temperature, establishing a reduced pO.sub.2 atmosphere below ambient pressure causing reduction of the peritectic melting point to a reduced temperature which causes melting from an exposed surface of the superconductor and raising pressure of the reduced pO.sub.2 atmosphere to cause solidification of the molten superconductor in a textured surface layer.

  15. Interaction of mesoscopic magnetic textures with superconductors 

    E-Print Network [OSTI]

    Erdin, S.; Kayali, AF; Lyuksyutov, Igor F.; Pokrovsky, Valery L.

    2002-01-01

    magnetizatio Th , numbe PHYSICAL REVIEW B 66, 014414 ~2002! proposed and analyzed. Such systems include arrays of mag- netic dots on the top of a SC film,6?8 FM-SC bilayers,9?11 magnetic nanorods embedded into a superconductor,12 mag- netic stripes... in superconducting films,13 a layer of magnetic dipoles between two bulk superconductors,14 an array of magnetic dipoles mimicking the FM dots on SC film,15 and a domain wall in a thick magnetic film on the bulk super- conductor.16,18 Earlier Marmorkos et al.17...

  16. Vortex lattice for a holographic superconductor

    E-Print Network [OSTI]

    Kengo Maeda; Makoto Natsuume; Takashi Okamura

    2009-12-17

    We investigate the vortex lattice solution in a (2+1)-dimensional holographic model of superconductors constructed from a charged scalar condensate. The solution is obtained perturbatively near the second-order phase transition and is a holographic realization of the Abrikosov lattice. Below a critical value of magnetic field, the solution has a lower free energy than the normal state. Both the free energy density and the superconducting current are expressed by nonlocal functions, but they reduce to the expressions in the Ginzburg-Landau (GL) theory at long wavelength. As a result, a triangular lattice becomes the most favorable solution thermodynamically as in the GL theory of type II superconductors.

  17. Understanding magnetic instability in gapless superconductors

    E-Print Network [OSTI]

    Mei Huang

    2005-09-18

    Magnetic instability in gapless superconductors still remains as a puzzle. In this article, we point out that the instability might be caused by using BCS theory in mean-field approximation, where the phase fluctuation has been neglected. The mean-field BCS theory describes very well the strongly coherent or rigid superconducting state. With the increase of mismatch between the Fermi surfaces of pairing fermions, the phase fluctuation plays more and more important role, and "soften" the superconductor. The strong phase fluctuation will eventually quantum disorder the superconducting state, and turn the system into a phase-decoherent pseudogap state.

  18. Building blocks for correlated superconductors and magnets

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sarrao, J. L.; Ronning, F.; Bauer, E. D.; Batista, C. D.; Zhu, J. -X.; Thompson, J. D.

    2015-04-01

    Recent efforts at Los Alamos to discover strongly correlated superconductors and hard ferromagnets are reviewed. While serendipity remains a principal engine of materials discovery, design principles and structural building blocks are beginning to emerge that hold potential for predictive discovery. Successes over the last decade with the so-called “115” strongly correlated superconductors are summarized, and more recent efforts to translate these insights and principles to novel hard magnets are discussed. While true “materials by design” remains a distant aspiration, progress is being made in coupling empirical design principles to electronic structure simulation to accelerate and guide materials design and synthesis.

  19. Holographic superconductors from the massive gravity

    E-Print Network [OSTI]

    Hua Bi Zeng; Jian-Pin Wu

    2014-09-24

    A holographic superconductor is constructed in the background of a massive gravity theory. In the normal state without condensation, the conductivity exhibits a Drude peak that approaches a delta function in the massless gravity limit as studied by David Vegh. In the superconducting state, besides the infinite DC conductivity, the AC conductivity has Drude behavior at low frequency followed by a power law-fall. These results are in agreement with that found earlier by Horowitz and Santos, who studied a holographic superconductor with an implicit periodic potential beyond the probe limit. The results also agree with measurements on some cuprates.

  20. Electrical connection structure for a superconductor element

    DOE Patents [OSTI]

    Lallouet, Nicolas; Maguire, James

    2010-05-04

    The invention relates to an electrical connection structure for a superconductor element cooled by a cryogenic fluid and connected to an electrical bushing, which bushing passes successively through an enclosure at an intermediate temperature between ambient temperature and the temperature of the cryogenic fluid, and an enclosure at ambient temperature, said bushing projecting outside the ambient temperature enclosure. According to the invention, said intermediate enclosure is filled at least in part with a solid material of low thermal conductivity, such as a polyurethane foam or a cellular glass foam. The invention is applicable to connecting a superconductor cable at cryogenic temperature to a device for equipment at ambient temperature.

  1. Implementing a Corporate Energy Management System | Department...

    Office of Environmental Management (EM)

    Implementing a Corporate Energy Management System Implementing a Corporate Energy Management System This presentation discusses 3M's experience with implementing a corporate energy...

  2. Anomalous critical fields in quantum critical superconductors

    E-Print Network [OSTI]

    Putzke, C.; Walmsley, P.; Fletcher, J. D.; Malone, L.; Vignolles, D.; Proust, C.; Badoux, S.; See, P.; Beere, H. E.; Ritchie, D. A.; Kasahara, S.; Mizukami, Y.; Shibauchi, T.; Matsuda, Y.; Carrington, A.

    2014-12-05

    . Koshelev, A. E. & Golubov, A. A. Mixed state of a dirty two-band superconductor: application to MgB2. Phys. Rev. Lett. 90, 177002 (2003). 33. Hartmann, U., Golubov, A. A., Drechsler, T., Kuprivanoc, M. Y. & Heiden, C. Measurement of the vortex-core radius...

  3. Holographic Superconductors in a Rotating Spacetime

    E-Print Network [OSTI]

    Kai Lin; Elcio Abdalla

    2014-10-17

    We consider holographic superconductors in a rotating black string spacetime. In view of the mandatory introduction of the $A_\\varphi$ component of the vector potential we are left with three equations to be solved. Their solutions show that the effect of the rotating parameter $a$ influences the critical temperature $T_c$ and the conductivity $\\sigma$ in a simple but not trivial way.

  4. p-wave superconductors in dilaton gravity

    E-Print Network [OSTI]

    ZhongYing Fan

    2013-10-08

    In this paper, we study peculiar properties of p-wave superconductors in dilaton gravity. The scale invariance of the bulk geometry is effectively broken due to the existence of dilaton. By coupling the dilaton to the non-Abelian gauge field, i.e., $-\\frac14 e^{-\\beta \\Phi} F^a_{\\mu\

  5. Enhancing critical current density of cuprate superconductors

    DOE Patents [OSTI]

    Chaudhari, Praveen

    2015-06-16

    The present invention concerns the enhancement of critical current densities in cuprate superconductors. Such enhancement of critical current densities include using wave function symmetry and restricting movement of Abrikosov (A) vortices, Josephson (J) vortices, or Abrikosov-Josephson (A-J) vortices by using the half integer vortices associated with d-wave symmetry present in the grain boundary.

  6. 2009 IBM Corporation 2009 IBM Corporation IMS and Java

    E-Print Network [OSTI]

    1 © 2009 IBM Corporation© 2009 IBM Corporation IMS and Java for Application Modernization Barbara November 4-5, 2009 This presentation discusses use of IMS and Java to modernize your applications. #12;2 2 IMS © 2009 IBM Corporation Agenda Java basics IMS Java basics IMS Java Applications IMS Database

  7. Aspects of Hess' Acquisition of American Oil & Gas

    Reports and Publications (EIA)

    2010-01-01

    On July 27, 2010, Hess Corporation announced that it had agreed to acquire American Oil & Gas, Inc. in a stock-only transaction worth as much as $488 million (based on Hess' closing price of $53.30/share, anticipated number of newly issued shares, and $30 million credit facility extended to American Oil & Gas prior to closing).

  8. Cryogenic Heat Pipe for Cooling High Temperature Superconductors with Application to

    E-Print Network [OSTI]

    Cryogenic Heat Pipe for Cooling High Temperature Superconductors with Application;#12;Cryogenic Heat Pipe for Cooling High Temperature Superconductors with Application to Electromagnetic Superconductors with Application to Electromagnetic Formation Flight Satellites by Daniel W. Kwon Submitted

  9. State of the Art Power-in Tube Niobium-Tin Superconductors

    E-Print Network [OSTI]

    Godeke, A.

    2011-01-01

    Multifilament V3Ga and Nb Sn superconductors produced by theMultifilament Nb Sn superconductors produced by the E.C.N,Properties in Superconductors, Matsukuma Press, Fukuoka,

  10. Essays in Behavioral Corporate Finance

    E-Print Network [OSTI]

    Zheng, Hui

    2012-01-01

    and practice of corporate finance: evidence from the field,Journal of Applied Corporate Finance 15, 8–23. 18. Graham,governance, Journal of Finance 63, 2737–2784. 21. Hackbarth,

  11. EEE 4263 & 5263 Corporate Entrepreneurship

    E-Print Network [OSTI]

    5) Innovation at 3M Corporation, HBS 9-699-012 July 2002 6) IDEO Product Development, HBS 2007 9 of the overall corporate strategy to renew a company's product lines or services, or offer totally new products.H, Kuratko, D.F, and Covin, J.G., 2010 Corporate Entrepreneurship & Innovation, 3rd Edition, Cengage Learning

  12. IBM Research 2006 IBM Corporation

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    IBM Research © 2006 IBM Corporation Who is the customer? Dinesh Verma IBM Thomas J Watson Research Center #12;IBM Research © 2006 IBM Corporation2 IWQoS 2006 Introduction QoS Research has been going is the customer for QoS? #12;IBM Research © 2006 IBM Corporation3 IWQoS 2006 QoS is the Answer- So What

  13. Press Release Corporate Communications

    E-Print Network [OSTI]

    Reggelin, Michael

    Page: 1/2 Press Release Corporate Communications Karolinenplatz 5 D-64289 Darmstadt Germany Your.ch@pvw.tu- darmstadt.de Internet: http://www.tu- darmstadt.de/presse e-mail: presse@tu-darmstadt.de Winner. Press contact: Dr. Miriam Ronzoni Tel.: +49-(0)152­266­04064 e-mail: ronzoni@soz.uni-frankfurt.de PR

  14. BINARY AND TERNARY NIOBIUM-BASE SUPERCONDUCTORS BY THE INFILTRATION PROCESS

    E-Print Network [OSTI]

    Pickus, M.R.

    2010-01-01

    of the High Field Superconductivity Program (4052). * •AND TERNARY NIOBIUM-BASE SUPERCONDUCTORS BY THE INFILTRATIONAND TERNARY NIOBIUM-BASE SUPERCONDUCTORS BY THE INFILTRATION

  15. Low resistivity contact to iron-pnictide superconductors

    DOE Patents [OSTI]

    Tanatar, Makariy; Prozorov, Ruslan; Ni, Ni; Bud'ko, Sergey; Canfield, Paul

    2013-05-28

    Method of making a low resistivity electrical connection between an electrical conductor and an iron pnictide superconductor involves connecting the electrical conductor and superconductor using a tin or tin-based material therebetween, such as using a tin or tin-based solder. The superconductor can be based on doped AFe.sub.2As.sub.2, where A can be Ca, Sr, Ba, Eu or combinations thereof for purposes of illustration only.

  16. Superconductors and Complex Transition Metal Oxides for Tunable...

    Office of Scientific and Technical Information (OSTI)

    for Tunable THz Plasmonic Metamaterials The outline of this presentation are: (1) Motivation - Non-tunability of metal metamaterials; (2) Superconductors for temperature tunable...

  17. Noncommutative Extension of AdS-CFT and Holographic Superconductors

    E-Print Network [OSTI]

    Souvik Pramanik; Sudipta Das; Subir Ghosh

    2015-02-13

    In this Letter, we consider a Non-Commutative (NC) extension of AdS-CFT correspondence and its effects on holographic superconductors. NC corrections are incorporated via the NC generalization of Schwarzschild black hole metric in AdS with the probe limit. We study NC effects on the relations connecting the charge density and the critical temperature of the Holographic Superconductors. Furthermore, condensation operator of the superconductor has been analyzed. Our results suggest that generically, NC effects increase the critical temperature of the holographic superconductor.

  18. Sealed glass coating of high temperature ceramic superconductors

    DOE Patents [OSTI]

    Wu, W.; Chu, C.Y.; Goretta, K.C.; Routbort, J.L.

    1995-05-02

    A method and article of manufacture of a lead oxide based glass coating on a high temperature superconductor is disclosed. The method includes preparing a dispersion of glass powders in a solution, applying the dispersion to the superconductor, drying the dispersion before applying another coating and heating the glass powder dispersion at temperatures below oxygen diffusion onset and above the glass melting point to form a continuous glass coating on the superconductor to establish compressive stresses which enhance the fracture strength of the superconductor. 8 figs.

  19. Method for fabrication of high temperature superconductors

    DOE Patents [OSTI]

    Balachandran, Uthamalingam (Hinsdale, IL); Ma, Beihai (Naperville, IL); Miller, Dean (Darien, IL)

    2009-07-14

    A layered article of manufacture and a method of manufacturing same is disclosed. A substrate has a biaxially textured MgO crystalline layer having the c-axes thereof inclined with respect to the plane of the substrate deposited thereon. A layer of one or more of YSZ or Y.sub.2O.sub.3 and then a layer of CeO.sub.2 is deposited on the MgO. A crystalline superconductor layer with the c-axes thereof normal to the plane of the substrate is deposited on the CeO.sub.2 layer. Deposition of the MgO layer on the substrate is by the inclined substrate deposition method developed at Argonne National Laboratory. Preferably, the MgO has the c-axes thereof inclined with respect to the normal to the substrate in the range of from about 10.degree. to about 40.degree. and YBCO superconductors are used.

  20. Phases of holographic d-wave superconductor

    E-Print Network [OSTI]

    Krikun, Alexander

    2015-01-01

    We study different phases in the holographic model of d-wave superconductor. These are described by solutions to the classical equations of motion found in different ansatze. Apart from the known homogeneous d-wave superconducting phase we find three new solutions. Two of them represent two distinct families of the spatially modulated solutions, which realize the charge density wave phases in the dual theory. The third one is the new homogeneous phase with nonzero anapole moment. These phases are relevant to the physics of cuprate high-Tc superconductor in pseudogap region. While the d-wave phase preserves translation, parity and time reversal symmetry, the striped phases break translations spontaneously. Parity and time-reversal are preserved when combined with discrete half-periodic shift of the wave. In anapole phase translation symmetry is preserved, but parity and time reversal are spontaneously broken. All of the considered solutions brake the global $U(1)$. Thermodynamical treatment shows that in the s...

  1. Application of High Temperature Superconductors to Accelerators

    E-Print Network [OSTI]

    Ballarino, A

    2000-01-01

    Since the discovery of high temperature superconductivity, a large effort has been made by the scientific community to investigate this field towards a possible application of the new oxide superconductors to different devices like SMES, magnetic bearings, flywheels energy storage, magnetic shielding, transmission cables, fault current limiters, etc. However, all present day large scale applications using superconductivity in accelerator technology are based on conventional materials operating at liquid helium temperatures. Poor mechanical properties, low critical current density and sensitivity to the magnetic field at high temperature are the key parameters whose improvement is essential for a large scale application of high temperature superconductors to such devices. Current leads, used for transferring currents from the power converters, working at room temperature, into the liquid helium environment, where the magnets are operating, represent an immediate application of the emerging technology of high t...

  2. Electrical bushing for a superconductor element

    DOE Patents [OSTI]

    Mirebeau, Pierre; Lallouet, Nicolas; Delplace, Sebastien; Lapierre, Regis

    2010-05-04

    The invention relates to an electrical bushing serving to make a connection at ambient temperature to a superconductor element situated in an enclosure at cryogenic temperature. The electrical bushing passes successively through an enclosure at intermediate temperature between ambient temperature and cryogenic temperature, and an enclosure at ambient temperature, and it comprises a central electrical conductor surrounded by an electrically insulating sheath. According to the invention, an electrically conductive screen connected to ground potential surrounds the insulating sheath over a section that extends from the end of the bushing that is in contact with the enclosure at cryogenic temperature at least as far as the junction between the enclosure at intermediate temperature and the enclosure at ambient temperature. The invention is more particularly applicable to making a connection to a superconductor cable.

  3. Soft wall model for a holographic superconductor

    E-Print Network [OSTI]

    S. S. Afonin; I. V. Pusenkov

    2015-06-17

    We apply the soft wall holographic model from hadron physics to a description of the high-$T_c$ superconductivity. In comparison with the existing bottom-up holographic superconductors, the proposed approach is more phenomenological. On the other hand, it is much simpler and has more freedom for fitting the conductivity properties of the real high-$T_c$ materials. We demonstrate some examples of emerging models and discuss a possible origin of the approach.

  4. Flywheel energy storage with superconductor magnetic bearings

    DOE Patents [OSTI]

    Weinberger, Bernard R. (Avon, CT); Lynds, Jr., Lahmer (Glastonbury, CT); Hull, John R. (Hinsdale, IL)

    1993-01-01

    A flywheel having superconductor bearings has a lower drag to lift ratio that translates to an improvement of a factor of ten in the rotational decay rate. The lower drag results from the lower dissipation of melt-processed YBCO, improved uniformity of the permanent magnet portion of the bearings, operation in a different range of vacuum pressure from that taught by the art, and greater separation distance from the rotating members of conductive materials.

  5. Exact Gravity Dual of a Gapless Superconductor

    E-Print Network [OSTI]

    George Koutsoumbas; Eleftherios Papantonopoulos; George Siopsis

    2009-06-17

    A model of an exact gravity dual of a gapless superconductor is presented in which the condensate is provided by a charged scalar field coupled to a bulk black hole of hyperbolic horizon in asymptotically AdS spacetime. Below a critical temperature, the black hole acquires its hair through a phase transition while an electromagnetic perturbation of the background Maxwell field determines the conductivity of the boundary theory.

  6. Soft wall model for a holographic superconductor

    E-Print Network [OSTI]

    Afonin, S S

    2015-01-01

    We apply the soft wall holographic model from hadron physics to a description of the high-$T_c$ superconductivity. In comparison with the existing bottom-up holographic superconductors, the proposed approach is more phenomenological. On the other hand, it is much simpler and has more freedom for fitting the conductivity properties of the real high-$T_c$ materials. We demonstrate some examples of emerging models and discuss a possible origin of the approach.

  7. General Relativistic Thermoelectric Effects in Superconductors

    E-Print Network [OSTI]

    B. J. Ahmedov

    2007-01-13

    We discuss the general-relativistic contributions to occur in the electromagnetic properties of a superconductor with a heat flow. The appearance of general-relativistic contribution to the magnetic flux through a superconducting thermoelectric bimetallic circuit is shown. A response of the Josephson junctions to a heat flow is investigated in the general-relativistic framework. Some gravitothermoelectric effects which are observable in the superconducting state in the Earth's gravitational field are considered.

  8. Free energy of a Lovelock holographic superconductor

    E-Print Network [OSTI]

    Ligeia Aranguiz; Olivera Miskovic

    2014-08-15

    We study thermodynamics of black hole solutions in Lanczos-Lovelock AdS gravity in d+1 dimensions coupled to nonlinear electrodynamics and a Stueckelberg scalar field. This class of theories is used in the context of gauge/gravity duality to describe a high-temperature superconductor in d dimensions. Larger number of coupling constants in the gravitational side is necessary to widen a domain of validity of physical quantities in a dual QFT. We regularize the gravitational action and find the finite conserved quantities for a planar black hole with scalar hair. Then we derive the quantum statistical relation in the Euclidean sector of the theory, and obtain the exact formula for the free energy of the superconductor in the holographic quantum field theory. Our result is analytic and it includes the effects of backreaction of the gravitational field. We further discuss on how this formula could be used to analyze second order phase transitions through the discontinuities of the free energy, in order to classify holographic superconductors in terms of the parameters in the theory.

  9. Benchmarking Corporate Energy Management 

    E-Print Network [OSTI]

    Norland, D. L.

    2001-01-01

    CORPORATE ENERGY MANAGEMENT Dr. Douglas L. Norland Director of Research and Industrial Programs Alliance to Save Energy Washington, DC ABSTRACT There is growing interest among energy managers in finding out how their company's energy management... procedures and perfonnance compare to that of other companies. Energy management involves everything from setting goals and targets to implementing best maintenance practices. This paper, however, discusses benchmarking energy management practices...

  10. Industrial Analytics Corporation

    SciTech Connect (OSTI)

    Industrial Analytics Corporation

    2004-01-30

    The lost foam casting process is sensitive to the properties of the EPS patterns used for the casting operation. In this project Industrial Analytics Corporation (IAC) has developed a new low voltage x-ray instrument for x-ray radiography of very low mass EPS patterns. IAC has also developed a transmitted visible light method for characterizing the properties of EPS patterns. The systems developed are also applicable to other low density materials including graphite foams.

  11. Impurity Doping Effect in High T c Superconductors

    E-Print Network [OSTI]

    Impurity Doping Effect in High T c Superconductors Yong­Jihn Kim and K. J. Chang Department observed that impurity doping and/or ion­beam­induced dam­ age in high T c superconductors cause a metal­ calization effect on superconductivity, we examine the variation of T c with increasing of impurity

  12. ANALYSIS OF FUTURE PRICES AND MARKETS FOR HIGH TEMPERATURE SUPERCONDUCTORS

    E-Print Network [OSTI]

    1 ANALYSIS OF FUTURE PRICES AND MARKETS FOR HIGH TEMPERATURE SUPERCONDUCTORS BY JOSEPH MULHOLLAND temperature superconductors (HTS) may impact the national electrical system over the next 25 years dollars. However, the savings from superconductivity are offset somewhat by the high cost of manufacturing

  13. Interlayer magnetoresistance peak in the ET-based organic superconductors

    E-Print Network [OSTI]

    Zuo, Fulin

    Interlayer magnetoresistance peak in the ET-based organic superconductors Fulin Zuo Department studies in the ET-based organic superconductors. For eld perpendicular to the planes as a function of superconducting transition, we nd the magnetoresistance peak is intrinisc to the layered

  14. Theory of static and dynamic antiferromagnetic vortices in LSCO superconductors

    E-Print Network [OSTI]

    Hu, Jiangping

    Theory of static and dynamic antiferromagnetic vortices in LSCO superconductors Jiang-Ping Hu, Shou. Here we review theoretical progress since the original proposal and present a theory of static experimental definition of the AFVS, where static AF order coexists with the vortex state of the superconductor

  15. Method of manufacturing a high temperature superconductor with improved transport properties

    DOE Patents [OSTI]

    Balachandran, Uthamalingam (Hinsdale, IL); Siegel, Richard W. (Hinsdale, IL); Askew, Thomas R. (Kalamazoo, MI)

    2001-01-01

    A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase paramagnetic material. These components are combined to form a solid compacted mass with the paramagnetic material disposed on the grain boundaries of the polycrystaline high temperature superconductor.

  16. System and method for quench protection of a superconductor

    DOE Patents [OSTI]

    Huang, Xianrui; Sivasubramaniam, Kiruba Haran; Bray, James William; Ryan, David Thomas

    2008-03-11

    A system and method for protecting a superconductor from a quench condition. A quench protection system is provided to protect the superconductor from damage due to a quench condition. The quench protection system comprises a voltage detector operable to detect voltage across the superconductor. The system also comprises a frequency filter coupled to the voltage detector. The frequency filter is operable to couple voltage signals to a control circuit that are representative of a rise in superconductor voltage caused by a quench condition and to block voltage signals that are not. The system is operable to detect whether a quench condition exists in the superconductor based on the voltage signal received via the frequency filter and to initiate a protective action in response.

  17. Energy gaps in the failed high-Tc superconductor La1:875Ba0:125CuO4

    E-Print Network [OSTI]

    He, R.-H.

    2012-01-01

    the pseudogap in cuprate superconductors. Science 314, 1914-symmetry in cuprate superconductors. Rev. Mod. Phys. 72,stripes in copper oxide superconductors. Nature 429, 534-

  18. Corporate Environmental Performance and Lobbying

    E-Print Network [OSTI]

    Delmas, Magali A; Lim, Jinghui; Nairn-Birch, Nicholas

    2015-01-01

    Corporate America and environmental policy: How often doesfailure and the environmental policies of firms: Economicexemplified in the environmental policy context, where the

  19. Corporate Environmental Performance and Lobbying

    E-Print Network [OSTI]

    Delmas, Magali A; Lim, Jinghui; Nairn-Birch, Nicholas

    2015-01-01

    Corporate America and environmental policy: How often doesfailure and the environmental policies of firms: EconomicReview of Environmental Economics and Policy, 2: 240–260.

  20. Corporate Environmental Performance and Lobbying

    E-Print Network [OSTI]

    Delmas, Magali A; Lim, Jinghui; Nairn-Birch, Nicholas

    2015-01-01

    political activities on climate change. Business & Society,E. P. 2012. Influencing climate change policy: The effect ofvisibility on corporate climate change disclosure. Journal

  1. THE AEROSPACE CORPORATION

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1. .&. ' , c 1 1; -.ll 1 ' 1CORPORATION

  2. THE AEROSPACE CORPORATION

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1. .&. ' , c 1 1; -.ll 1 ' 1CORPORATION1

  3. THE AEROSPACE CORPORATION

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1. .&. ' , c 1 1; -.ll 1 'CORPORATION

  4. THE AEROSPACE CORPORATION

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1. .&. ' , c 1 1; -.ll 1 'CORPORATION53

  5. Exploring intertwined orders in cuprate superconductors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tranquada, John M. [Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics & Materials Science Dept.

    2015-03-01

    The concept of intertwined orders has been introduced to describe the cooperative relationship between antiferromagnetic spin correlations and electron (or hole) pair correlations that develop in copper-oxide superconductors. This contrasts with systems in which, for example, charge-density-wave (CDW) order competes for Fermi surface area with superconductivity. La2-xBaxCuO4 with x = 0.125 provides an example in which the ordering of spin stripes coincides with the onset of two-dimensional superconducting correlations. The apparent frustration of the interlayer Josephson coupling has motivated the concept of the pair-density-wave superconductor, a state that theoretical calculations show to be energetically competitive with the uniform d-wave superconductor. Even at x = 0.095, where there is robust superconductivity below 32 K in zero field, the coexistence of strong, low-energy, incommensurate spin excitations implies a spatially modulated and intertwined pair wave function. Recent observations of CDW order in YBa2Cu3O6+x and other cuprate families have raised interesting questions regarding the general role of charge modulations and the relation to superconductivity. While there are differences in the doping dependence of the modulation wave vectors in YBa2Cu3O6+x and La2-xBaxCuO4, the maximum ordering strength is peaked at the hole concentration of 1/8 in both cases. There are also possible connections with the quantum oscillations that have been detected about the same hole concentration but at high magnetic fields. Resolving these relationships remains a research challenge.

  6. Exploring intertwined orders in cuprate superconductors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tranquada, John M.

    2014-11-22

    In this study, the concept of intertwined orders has been introduced to describe the cooperative relationship between antiferromagnetic spin correlations and electron (or hole) pair correlations that develop in copper-oxide superconductors. This contrasts with systems in which, for example, charge-density-wave (CDW) order competes for Fermi surface area with superconductivity. La2-xBaxCuO4 with x = 0.125 provides an example in which the ordering of spin stripes coincides with the onset of two-dimensional superconducting correlations. The apparent frustration of the interlayer Josephson coupling has motivated the concept of the pair-density-wave superconductor, a state that theoretical calculations show to be energetically competitive with themore »uniform d-wave superconductor. Even at x = 0.095, where there is robust superconductivity below 32 K in zero field, the coexistence of strong, low-energy, incommensurate spin excitations implies a spatially modulated and intertwined pair wave function. Recent observations of CDW order in YBa2Cu3O6+x and other cuprate families have raised interesting questions regarding the general role of charge modulations and the relation to superconductivity. While there are differences in the doping dependence of the modulation wave vectors in YBa2Cu3O6+x and La2-xBaxCuO4, the maximum ordering strength is peaked at the hole concentration of 1/8 in both cases. There are also possible connections with the quantum oscillations that have been detected about the same hole concentration but at high magnetic fields. Resolving these relationships remains a research challenge.« less

  7. Minimal Model for an Unbalanced Holographic Superconductor

    E-Print Network [OSTI]

    Daniele Musso

    2013-04-22

    We describe the simplest holographic model for an s-wave unbalanced superconductor in 2+1 dimensions. We study its phase diagram and linear response features with particular attention to the possibility of spatially modulated phases (LOFF) and mixed spin-electric properties. The normal phase of the model at hand allows us to analyze a strong-coupling generalization of Mott two-current model for spintronic systems; the superconducting phase features an interesting DC spin-superconductivity without spin-symmetry breaking .

  8. Impurity effect in a holographic superconductor

    E-Print Network [OSTI]

    Takaaki Ishii; Sang-Jin Sin

    2013-01-30

    We consider a holographic superconductor with homogeneous impurities added. We start with the holographic Abelian-Higgs model for s-wave superconductivity, and turn on a coupling between the gauge field and a new massive gauge field that is introduced for impurities, whose effect is examined in the probe limit. We find that the condensation of the massive gauge field is induced in the superconducting phase. When the coupling is sufficiently large, the mass gap in the optical conductivity disappears. A resonance peak is found in the conductivity for the massive vector field.

  9. Gravitomagnetism in superconductors and compact stars

    E-Print Network [OSTI]

    Cosimo Bambi

    2007-10-10

    There are three experimentally observed effects in rotating superconductors that are so far unexplained. Some authors have tried to interpret such a phenomena as possible new gravitational properties of coherent quantum systems: in particular, they suggest that the gravitomagnetic field of that kind of matter may be many orders of magnitude stronger than the one expected in the standard theory. Here I show that this interpretation would be in conflict with the common belief that neutron stars have neutrons in superfluid state and protons in superconductive one.

  10. Minimal Model for an Unbalanced Holographic Superconductor

    E-Print Network [OSTI]

    Musso, Daniele

    2013-01-01

    We describe the simplest holographic model for an s-wave unbalanced superconductor in 2+1 dimensions. We study its phase diagram and linear response features with particular attention to the possibility of spatially modulated phases (LOFF) and mixed spin-electric properties. The normal phase of the model at hand allows us to analyze a strong-coupling generalization of Mott two-current model for spintronic systems; the superconducting phase features an interesting DC spin-superconductivity without spin-symmetry breaking .

  11. IBM Research 2005 IBM Corporation

    E-Print Network [OSTI]

    Cascaval, Calin

    IBM Research © 2005 IBM Corporation HPC Challenge 2005 Awards Competition: UPC on BlueGene/L C. Cacaval, C. Barton, G. Almási, Y. Zheng, M. Farreras, P. Luk, R. Mak IBM Research and IBM SWG Toronto #12;IBM Research © 2005 IBM Corporation2 HPC Challenge Awards Competition Class 2 Nov. 15, 2005

  12. 2002 IBM Corporation IBM Research

    E-Print Network [OSTI]

    1 © 2002 IBM Corporation IBM Research High-performance computing techniques for neuro-image analysis A. Ravishankar Rao IBM T.J. Watson Research Center Yorktown Heights, NY #12;IBM Research © 2008 IBM Corporation 2 Acknowledgements Guillermo Cecchi, IBM Research Marcelo Magnasco, Rockefeller

  13. Shanghai Aerospace Industrial General Corporation aka Shanghai...

    Open Energy Info (EERE)

    Aerospace Industrial General Corporation aka Shanghai Academy of Spaceflight Technology Jump to: navigation, search Name: Shanghai Aerospace Industrial General Corporation (aka...

  14. LANL named 2010 top corporate volunteer organization

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2010 top corporate volunteer organization LANL named 2010 top corporate volunteer organization The Laboratory ranked ahead of dozens of other qualifying companies with 10,000 or...

  15. AmpluseCorporation.pdf | Department of Energy

    Office of Environmental Management (EM)

    AmpluseCorporation.pdf AmpluseCorporation.pdf More Documents & Publications BattelleVentures.pdf Commercializing Department of Energy Technologies: Success...

  16. Preliminary Notice of Violation, International Technology Corporation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technology Corporation - EA-1999-01 Preliminary Notice of Violation, International Technology Corporation - EA-1999-01 February 26, 1999 Issued to International Technology...

  17. Pacific Fuel Cell Corporation | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cell Corporation Jump to: navigation, search Name: Pacific Fuel Cell Corporation Address: 26985 Lakeland Blvd. Place: Euclid, Ohio Zip: 44132 Sector: Buildings, Efficiency,...

  18. PROJECT PROFILE: Vermont Energy Investment Corporation (Solar...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vermont Energy Investment Corporation (Solar Market Pathways) PROJECT PROFILE: Vermont Energy Investment Corporation (Solar Market Pathways) Title: Vermont Solar Development Plan...

  19. Abrikosov Gluon Vortices in Color Superconductors

    E-Print Network [OSTI]

    Efrain J. Ferrer

    2010-04-05

    In this talk I will discuss how the in-medium magnetic field can influence the gluon dynamics in a three-flavor color superconductor. It will be shown how at field strengths comparable to the charged gluon Meissner mass a new phase can be realized, giving rise to Abrikosov's vortices of charged gluons. In that phase, the inhomogeneous gluon condensate anti-screens the magnetic field due to the anomalous magnetic moment of these spin-1 particles. This paramagnetic effect can be of interest for astrophysics, since due to the gluon vortex antiscreening mechanism, compact stars with color superconducting cores could have larger magnetic fields than neutron stars made up entirely of nuclear matter. I will also discuss a second gluon condensation phenomenon connected to the Meissner instability attained at moderate densities by two-flavor color superconductors. In this situation, an inhomogeneous condensate of charged gluons emerges to remove the chromomagnetic instability created by the pairing mismatch, and as a consequence, the charged gluonic currents induce a magnetic field. Finally, I will point out a possible relation between glitches in neutron stars and the existence of the gluon vortices.

  20. Method for fabrication of high temperature superconductors

    DOE Patents [OSTI]

    Balachandran, Uthamalingam; Ma, Beihai; Miller, Dean

    2006-03-14

    A layered article of manufacture and a method of manufacturing same is disclosed. A substrate has a biaxially textured MgO crystalline layer having the c-axes thereof inclined with respect to the plane of the substrate deposited thereon. A layer of one or more of YSZ or Y2O3 and then a layer of CeO2 is deposited on the MgO. A crystalline superconductor layer with the c-axes thereof normal to the plane of the substrate is deposited on the CeO2 layer. Deposition of the MgO layer on the substrate is by the inclined substrate deposition method developed at Argonne National Laboratory. Preferably, the MgO has the c-axes thereof inclined with respect to the normal to the substrate in the range of from about 10.degree. to about 40.degree. and YBCO superconductors are used.

  1. Nonequilibrium theory of a hot-electron bolometer with normal metal-insulator-superconductor tunnel junction

    SciTech Connect (OSTI)

    Golubev, Dmitri; Kuzmin, Leonid

    2001-06-01

    The operation of the hot-electron bolometer with normal metal-insulator-superconductor (NIS) tunnel junction as a temperature sensor is analyzed theoretically. The responsivity and the noise equivalent power (NEP) of the bolometer are obtained numerically for typical experimental parameters. Relatively simple approximate analytical expressions for these values are derived. The time constant of the device is also found. We demonstrate that the effect of the electron cooling by the NIS junction, which serves as a thermometer, can improve the sensitivity. This effect is also useful in the presence of the finite background power load. We discuss the effect of the correlation of the shot noise and the heat flow noise in the NIS junction. {copyright} 2001 American Institute of Physics.

  2. Gauss-Bonnet holographic superconductors with magnetic field

    E-Print Network [OSTI]

    M. R. Setare; D. Momeni

    2011-10-28

    We study the Gauss-Bonnet (GB) holographic superconductors in the presence of an external magnetic field. We describe the phenomena away from the probe limit. We derive the critical magnetic field of the GB holographic superconductors with backreaction. Our analytical approach matches the numerical calculations. We calculate the backreaction corrections up to first order of $O(\\kappa^2=8\\pi G)$ to the critical temperature $T_C$ and the critical magnetic field $B_C$ for a GB superconductor. We show that the GB coupling $\\alpha$ makes the condensation weaker but the backreaction corrections $O(\\kappa^2)$ make the critical magnetic field stronger.

  3. A general holographic metal/superconductor phase transition model

    E-Print Network [OSTI]

    Yan Peng; Yunqi Liu

    2015-03-03

    We study the scalar condensation of a general holographic superconductor model in AdS black hole background away from the probe limit. We find the model parameters together with the scalar mass and backreaction can determine the order of phase transitions completely. In addition, we observe two types of discontinuities of the scalar operator in the case of first order phase transitions. We analyze in detail the effects of the scalar mass and backreaction on the formation of discontinuities and arrive at an approximate relation between the threshold model parameters. Furthermore, we obtain superconductor solutions corresponding to higher energy states and examine the stability of these superconductor solutions.

  4. Holographic superconductor in the exact hairy black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Chanyong Park

    2011-09-13

    We study the charged black hole of hyperbolic horizon with scalar hair (charged Martinez-Troncoso-Zanelli: CMTZ black hole) as a model of analytic hairy black hole for holographic superconductor. For this purpose, we investigate the second order phase transition between CMTZ and hyperbolic Reissner-Nordstr\\"om-AdS (HRNAdS) black holes. However, this transition unlikely occur. As an analytic treatment for holographic superconductor, we develop superconductor in the bulk and superfluidity on the boundary using the CMTZ black hole below the critical temperature. The presence of charge destroys the condensates around the zero temperature, which is in accord with the thermodynamic analysis of the CMTZ black hole.

  5. Chiral CP^2 skyrmions in three-band superconductors

    E-Print Network [OSTI]

    Julien Garaud; Johan Carlstrom; Egor Babaev; Martin Speight

    2013-01-14

    It is shown that under certain conditions, three-component superconductors (and in particular three-band systems) allow stable topological defects different from vortices. We demonstrate the existence of these excitations, characterized by a $CP^2$ topological invariant, in models for three-component superconductors with broken time reversal symmetry. We term these topological defects "chiral $GL^{(3)}$ skyrmions", where "chiral" refers to the fact that due to broken time reversal symmetry, these defects come in inequivalent left- and right-handed versions. In certain cases these objects are energetically cheaper than vortices and should be induced by an applied magnetic field. In other situations these skyrmions are metastable states, which can be produced by a quench. Observation of these defects can signal broken time reversal symmetry in three-band superconductors or in Josephson-coupled bilayers of $s_\\pm$ and s-wave superconductors.

  6. The Relativistic Shift in the Mössbauer Effect AND Coupled Superconductors

    E-Print Network [OSTI]

    Josephson, Brian

    2012-10-26

    Part I of this dissertation predicts a temperature dependence, with relativistic causes, of the frequency of Mössbauer effect gamma rays. Part II contains the original analysis of the behaviour of two superconductors linked in a way that permits...

  7. Electron transport in normal-metal/superconductor junctions 

    E-Print Network [OSTI]

    Yan, XZ; Zhao, HW; Hu, Chia-Ren.

    2000-01-01

    On the basis of the Keldysh method of nonequilibrium systems, we develop a theory of electron tunneling in normal-metal-superconductor junctions. By using the tunneling Hamiltonian model (being appropriate for the tight-binding systems...

  8. Stability and quench protection of high-temperature superconductors

    E-Print Network [OSTI]

    Ang, Ing Chea

    2006-01-01

    In the design and operation of a superconducting magnet, stability and protection are two key issues that determine the magnet's reliability and safe operation. Although the high-temperature superconductor (HTS) is considered ...

  9. Probing high-energy spin fluctuations in iron pnictide superconductors...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Probing high-energy spin fluctuations in iron pnictide superconductors and the metal-insulator transition in rare-earth nickelates by soft X-ray RIXS Wednesday, November 18, 2015 -...

  10. The Ginzburg-Landau Theory of a Holographic Superconductor

    E-Print Network [OSTI]

    Lei Yin; Defu Hou; Hai-cang Ren

    2014-09-26

    The general Ginzburg-Landau formulation of a holographic superconductor is developed near the transition temperature in the probe limit for two kinds of conformal dimension. Below the transition temperature, $Tsuperconductiviy.

  11. Holographic Superconductors from Einstein-Maxwell-Dilaton Gravity

    E-Print Network [OSTI]

    Yan Liu; Ya-Wen Sun

    2010-07-07

    We construct holographic superconductors from Einstein-Maxwell-dilaton gravity in 3+1 dimensions with two adjustable couplings $\\alpha$ and the charge $q$ carried by the scalar field. For the values of $\\alpha$ and $q$ we consider, there is always a critical temperature at which a second order phase transition occurs between a hairy black hole and the AdS RN black hole in the canonical ensemble, which can be identified with the superconducting phase transition of the dual field theory. We calculate the electric conductivity of the dual superconductor and find that for the values of $\\alpha$ and $q$ where $\\alpha/q$ is small the dual superconductor has similar properties to the minimal model, while for the values of $\\alpha$ and $q$ where $\\alpha/q$ is large enough, the electric conductivity of the dual superconductor exhibits novel properties at low frequencies where it shows a "Drude Peak" in the real part of the conductivity.

  12. Holographic superconductor developed in BTZ black hole background with backreactions

    E-Print Network [OSTI]

    Yunqi Liu; Qiyuan Pan; Bin Wang

    2011-06-22

    We develop a holographic superconductor in BTZ black hole background with backreactions. We investigate the influence of the backreaction on the condensation of the scalar hair and the dynamics of perturbation in the background spacetime. When the Breitenlohner-Freedman bound is approached, we argue that only one of two possible operators can reflect the real property of the condensation in the holographic superconductor. This argument is supported by the investigation in dynamics.

  13. Strongly Coupled Striped Superconductor with Large Modulation

    E-Print Network [OSTI]

    Jimmy A. Hutasoit; Suman Ganguli; George Siopsis; Jason Therrien

    2012-02-27

    We analytically calculate properties of a strongly coupled striped superconductor, with the charge density wave sourced by a modulated chemical potential, in the large modulation wavenumber Q limit. In the absence of a homogeneous term in the chemical potential, we show that the critical temperature scales as a negative power of Q for scaling dimensions \\Delta 3/2, there is no phase transition above a certain critical value of Q. The condensate is found to scale as a positive power of Q such that the gap is proportional to Q. We discuss how these results change if a homogeneous term is added to the chemical potential. We compare our analytic results with numerical calculations whenever the latter are available and find good agreement.

  14. Search for Superscreening effect in Superconductor

    E-Print Network [OSTI]

    P. Ujic; F. de Oliveira Santos; M. Lewitowicz; L. Achouri; M. Assié; B. Bastin; C. Borcea; R. Borcea; A. Buta; A. Coc; G. De France; O. Kamalou; J. Kiener; A. Lepailleur; V. Meot; A. Pautrat; M. G. Saint Laurent; O. Sorlin; M. Stanoiu; V. Tatischef

    2012-12-14

    The decay of $^{19}$O($\\beta^-$) and $^{19}$Ne($\\beta^+$) implanted in niobium in its superconducting and metallic phase was measured using purified radioactive beams produced by the SPIRAL/GANIL facility. Half-lives and branching ratios measured in the two phases are consistent within one-sigma error bar. This measurement casts strong doubts on the predicted strong electron screening in superconductor, the so-called superscreening. The measured difference in screening potential energy is 110(90) eV for $^{19}$Ne and 400(320) eV for $^{19}$O. Precise determinations of the half-lives were obtained for $^{19}$O: 26.476(9) s and $^{19}$Ne: 17.254(5) s.

  15. Generalized Superconductors and Holographic Optics - II

    E-Print Network [OSTI]

    Subhash Mahapatra

    2014-11-24

    Using linear response theory, we analyze optical response properties of generalized holographic superconductors, in AdS-Schwarzschild and single R-charged black hole backgrounds in four dimensions. By introducing momentum dependent vector mode perturbations, the response functions for these systems are studied numerically, including the effects of backreaction. This complements and completes the probe limit analysis for these backgrounds initiated in our previous work ({\\tt arXiv : 1305.6273}). Our numerical analysis indicates a negative Depine-Lakhtakia index for both the backgrounds studied, at low enough frequencies. The dependence of the response functions on the backreaction parameter and the model parameters are established and analyzed with respect to similar backgrounds in five dimensions.

  16. Isominkowskian theory of Cooper Pairs in superconductors

    SciTech Connect (OSTI)

    Animalu, A.O.E. [Univ. of Nigeria, Nsukka (Nigeria)

    1993-10-01

    Via the use of Santilli`s isominkowskian space, the author presents a relativistic extension of the author`s recent treatment of the Cooper Pair in superconductivity based on the Lie-isotopic lifting of quantum mechanics known as Hadronic Mechanics. The isominkowskian treatment reduces the solution of the eiganvalue problem for the quasiparticle energy spectrum to a geometric problem of specifying the metric of the isominkowskian space inside the pair in various models of ordinary high T{sub c} superconductors. The use of an intriguing realization of the metric due to Dirac reduces the dimensionality of the interior space to two yielding a spin mutation from 1/2 to zero inside a Cooper pair in two-band BCS and Hubbard models. 12 refs.

  17. The Farm and Ranch Corporation

    E-Print Network [OSTI]

    Brints, Norman; Sartin, Marvin

    1980-01-01

    ......................................................... 12 Liquidation ................................................................ 12 The Farm and Ranch Corporation Norman Brints and Marvin Sartin* As the family farm or ranch grows in size and complexity, many farm operators are examining...

  18. Renewable Energy Tax Credit (Corporate)

    Broader source: Energy.gov [DOE]

    In addition, Kentucky corporate taxpayers may take a credit equal to $3 per watt (DC) of rated capacity for the installation of a photovoltaic (PV) system. Solar and wind technologies have a maxi...

  19. Transport measurements of FeAs superconductors in the 150T single...

    Office of Scientific and Technical Information (OSTI)

    Transport measurements of FeAs superconductors in the 150T single-turn magnet Citation Details In-Document Search Title: Transport measurements of FeAs superconductors in the 150T...

  20. EVALUATION OF VARIOUS FABRICATION TECHNIQUES FOR FABRICATION OF FINE FILAMENT NbTi SUPERCONDUCTORS

    E-Print Network [OSTI]

    Scanlan, R.M.

    2010-01-01

    i c Formation in Fine Filament Nb-Ti Superconductors," lEEK~ of closely spaced fine filaments. Refe ~ences "HanufactureFOR FABRICATION OF FINE FILAMENT NbTi SUPERCONDUCTORS R.M.

  1. Sandia Energy - North American Electric Reliability Corporation (NERC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSampleLignin-FeastingPreviously

  2. American Ref Fuel Corporation ARC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolarOpen5AllEnergyAmeriPower LLCAmerican Recovery andRef Fuel

  3. American Science and Technology Corporation AST | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolarOpen5AllEnergyAmeriPower LLCAmerican RecoveryRiverScience

  4. Comments of North American Electric Reliability Corporation (NERC) to DOE

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle (PEV)Day-June 22, 2015 |AT&T IncNational Grid'sSmart

  5. NAWIG News: The Quarterly Newsletter of the Native American Wind Interest Group; Summer 2005

    SciTech Connect (OSTI)

    Not Available

    2005-09-01

    The United States is home to more than 700 American Indian tribes and Native Alaska villages and corporations located on 96 million acres. Many of these tribes and villages have excellent wind resources that could be commercially developed to meet their electricity needs or for electricity export. The Wind Powering America program engages Native Americans in wind energy development, and as part of that effort, the NAWIG newsletter informs readers of events in the Native American/wind energy community.

  6. Karnataka Power Corporation Limited and National Thermal Power...

    Open Energy Info (EERE)

    Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name: Karnataka Power Corporation Limited and National Thermal Power...

  7. Steffes Corporation Smart Grid RFI: Addressing Policy and Logistical...

    Office of Environmental Management (EM)

    Steffes Corporation Smart Grid RFI: Addressing Policy and Logistical Challenges Steffes Corporation Smart Grid RFI: Addressing Policy and Logistical Challenges Steffes Corporation...

  8. Engineered flux-pinning centers in BSCCO TBCCO and YBCO superconductors

    DOE Patents [OSTI]

    Goretta, K.C.; Lanagan, M.T.; Miller, D.J.; Sengupta, S.; Parker, J.C.; Hu, J.; Balachandran, U.; Siegel, R.W.; Shi, D.

    1999-07-27

    A method of preparing a high temperature superconductor is disclosed. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase material. These components are combined to form a solid compacted mass with the material disposed in the polycrystalline high temperature superconductor. This combined mixture is rapidly heated, forming a dispersion of nanophase size particles without a eutectic reaction. These nanophase particles can have a flat plate or columnar type morphology. 4 figs.

  9. Volume 93A, number 4 PHYSICS LETTERS 10 January 1983 POISSON STRUCTURES OF SUPERCONDUCTORS

    E-Print Network [OSTI]

    Holm, Darryl D.

    Volume 93A, number 4 PHYSICS LETTERS 10 January 1983 POISSON STRUCTURES OF SUPERCONDUCTORS Darryl D of these equations to the dissipative case. Introduction. For superconductors, there are two phenomenological superconductor; hybrid microscopic and phenomenological approaches [4] ; and purely phenomenological approaches

  10. Local antiferromagnetic exchange and collaborative Fermi surface as key ingredients of high temperature superconductors

    E-Print Network [OSTI]

    Hu, Jiangping

    Xiv:1107.1334v1[cond-mat.supr-con]7Jul2011 #12;In a conventional superconductor, superconductivity emerges are harmful to superconductivity [2]. In contrast, the three known classes of high-Tc superconductors, superconductivity in high-Tc superconductors is rather robust against impurities [4, 12], contrary to conventional

  11. Generalized coherent-state derivation of time-dependent density-functional theory equations for superconductors

    E-Print Network [OSTI]

    Mukamel, Shaul

    for superconductors Oleg Berman1, * and Shaul Mukamel1,2, 1 Department of Chemistry, University of Rochester, Box-temperature superconductors. The temperature of the Kosterlitz- Thouless transition to the two-dimensional superfluidity for the ground-state wave function of superconductors predicts a gap in the spectrum1 originating from

  12. Holographic Superconductors in a Cohesive Phase

    E-Print Network [OSTI]

    Francesco Aprile

    2012-09-12

    We consider a four-dimensional N=2 gauged supergravity coupled to matter fields. The model is obtained by a U(1) gauging of a charged hypermultiplet and therefore it is suitable for the study of holographic superconductivity. The potential has a topologically flat direction and the parameter running on this "moduli space" labels the new superconducting black holes. Zero temperature solutions are constructed and the phase diagram of the theory is studied. The model has rich dynamics. The retrograde condensate is just a special case in the new class of black holes. The calculation of the entanglement entropy makes manifest the properties of a generic solution and the superconductor at zero temperature is in a confined cohesive phase. The parameter running on the topologically flat direction is a marginal coupling in the dual field theory. We prove this statement by considering the way double trace deformations are treated in the AdS/CFT correspondence. Finally, we comment on a possible connection, in the context of gauge/gravity dualities, between the geometry of the scalar manifold in N=2 supergravity models and the space of marginal deformations of the dual field theory.

  13. Topology of crystalline insulators and superconductors

    E-Print Network [OSTI]

    Ken Shiozaki; Masatoshi Sato

    2014-10-14

    We complete a classification of topological phases and their topological defects in crystalline insulators and superconductors. We consider topological phases and defects described by non-interacting Bloch and Bogoliubov de Gennes Hamiltonians that support additional order-two spatial symmetry, besides any of ten classes of symmetries defined by time-reversal symmetry and particle-hole symmetry. The additional order-two spatial symmetry we consider is general and it includes $Z_2$ global symmetry, mirror reflection, two-fold rotation, inversion, and their magnetic point group symmetries. We find that the topological periodic table shows a novel periodicity in the number of flipped coordinates under the order-two spatial symmetry, in addition to the Bott-periodicity in the space dimensions. Various symmetry protected topological phases and gapless modes will be identified and discussed in a unified framework. We also present topological classification of symmetry protected Fermi points. The bulk classification and the surface Fermi point classification provide a novel realization of the bulk-boundary correspondence in terms of the K-theory.

  14. The Sealion Corporation- 2011 Project

    Broader source: Energy.gov [DOE]

    The Sea Lion Corporation (SLC), an Alaska Native Claims Settlement Act village corporation, is to conduct an energy efficiency feasibility study with the goal to create jobs by providing funding to train staff to be energy raters as well as weatherization/energy conservation technicians that specialize in building construction and energy savings technologies; and to conduct a feasibility study that demonstrates a 30% reduction in residential/commercial energy usage and identify the economic benefits of implementing energy efficiency measures to the tribe.

  15. Verenium Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairex CorporationVerenium Corporation Jump to:

  16. Possible temperature control DC switch effect between two superconductors

    E-Print Network [OSTI]

    Tian De Cao

    2011-08-11

    The lifetime of an electron pair could not be unlimited long, on the basis of this, we suggest a model. The model means that the movements of charge carriers in a superconductor should have three forms: the single-electron movement, the single-pair movement, and the revolving around the mass center of two electrons in a pair. Thus the current in a superconductor has three possible parts. Similarly, there should be three possible effects in a SIS junction: the tunneling of single electron, the tunneling of single pair, and the pair-forming following the pair-breaking. This paper will discuss these problems and present a possible temperature control DC switch effect between two superconductors.

  17. Non-equilibrium Condensation Process in a Holographic Superconductor

    E-Print Network [OSTI]

    Keiju Murata; Shunichiro Kinoshita; Norihiro Tanahashi

    2010-05-04

    We study the non-equilibrium condensation process in a holographic superconductor. When the temperature T is smaller than a critical temperature T_c, there are two black hole solutions, the Reissner-Nordstrom-AdS black hole and a black hole with a scalar hair. In the boundary theory, they can be regarded as the supercooled normal phase and the superconducting phase, respectively. We consider perturbations on supercooled Reissner-Nordstrom-AdS black holes and study their non-linear time evolution to know about physical phenomena associated with rapidly-cooled superconductors. We find that, for Tsuperconducting order parameter. Finally, we study the time evolution of event and apparent horizons and discuss their correspondence with the entropy of the boundary theory. Our result gives a first step toward the holographic understanding of the non-equilibrium process in superconductors.

  18. Possible Measurable Effects of Dark Energy in Rotating Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos; Christian Beck

    2007-07-12

    We discuss recent laboratory experiments with rotating superconductors and show that three so far unexplained experimentally observed effects (anomalous acceleration signals, anomalous gyroscope signals, Cooper pair mass excess) can be physically explained in terms of a possible interaction of dark energy with Cooper pairs. Our approach is based on a Ginzburg-Landau-like model of electromagnetic dark energy, where gravitationally active photons obtain mass in the superconductor. We show that this model can account simultaneously for the anomalous acceleration and anomalous gravitomagnetic fields around rotating superconductors measured by Tajmar et al. and for the anomalous Cooper pair mass in superconductive Niobium, measured by Cabrera and Tate. It is argued that these three different physical effects are ultimately different experimental manifestations of the simultaneous spontaneous breaking of gauge invariance, and of the principle of general covariance in superconductive materials.

  19. The Market for Borrowing Corporate Bonds

    E-Print Network [OSTI]

    Asquith, Paul

    This paper describes the market for borrowing corporate bonds using a comprehensive data set from a major lender. The cost of borrowing corporate bonds is comparable to the cost of borrowing stock, between 10 and 20 basis ...

  20. Corporate decision analysis : an engineering approach

    E-Print Network [OSTI]

    Tang, Victor, Ph.D. Massachusetts Institute of Technology

    2006-01-01

    We explore corporate decisions and their solutions under uncertainty using engineering methods. Corporate decisions tend to be complex; they are interdisciplinary and defy programmable solutions. To address these challenges, ...

  1. Beyond Compliance: Integrating Nonproliferation into Corporate Sustainability

    SciTech Connect (OSTI)

    Hund, Gretchen; Kurzrok, Andrew J.

    2013-06-01

    This paper investigates nonproliferation as a potential corporate sustainability value. It reviews the history of corporate sustainability, builds the case for nonproliferation as a sustainability value, and develops recommendations for the integration of nonproliferation into the frameworks of sustainability.

  2. Developing a Corporate Water Management Strategy 

    E-Print Network [OSTI]

    Tutterow, V.

    2015-01-01

    MANAGEMENT STRATEGY Vestal Tutterow Senior Technical Consultant (o) 703.748.7248 Vestal.tutterow@ppc.com June 4, 2015 PPC | Developing a Corporate Water Management Strategy 1 PRESENTATION OUTLINE PPC | Developing a Corporate Water Management Strategy 2...

  3. Corporate governance : the case for Asian REITs

    E-Print Network [OSTI]

    Tan, Denise, S.M. Massachusetts Institute of Technology

    2009-01-01

    At the entity level, the design of sound corporate governance mechanisms is critical for REITs that are preparing to go public. At the industry level, issues of transparency and corporate governance are consequential to ...

  4. Corporate Real Estate and Facilities Cost Reduction IBM Corporation | December 2, 2009 Page 1 of 7

    E-Print Network [OSTI]

    Corporate Real Estate and Facilities Cost Reduction © IBM Corporation | December 2, 2009 Page 1 of 7 - Internal distribution only Corporate Real Estate and Facilities Cost Reduction Summary By moving and facilities costs by 15-20%, whilst still improving services. Successful cost reduction in corporate real

  5. Energy Conservation in China North Industries Corporation 

    E-Print Network [OSTI]

    You, W. T.; De, C. H.; Chu, J. X.; Fu, L. R.

    1985-01-01

    IN CHINA NORTH INDUSTRIES CORPORATION Wang Tian You, Chen Hua De, Jing Xing Chu, Ling Rui Fu, China North Industries Corporation Beijing, People's Republic of China ABSTRACT This paper describes an overview of the energy conservation in China... North Industries Corporation. It shows how the corporation improves energy effi ciencies and how it changes constitution of fuel-- converting oil consumption to coal. Energy management organization, energy balance in plants and several specific...

  6. Mastermind Session: Wisconsin Energy Conservation Corporation...

    Broader source: Energy.gov (indexed) [DOE]

    Peer Exchange Call: Program Sustainability Mastermind Session, featuring host Brian Driscoll, Wisconsin Energy Conservation Corporation. Call Slides and Discussion Summary,...

  7. On the critical temperatures of superconductors: a quantum gravity approach

    E-Print Network [OSTI]

    Andrea Gregori

    2010-07-06

    We consider superconductivity in the light of the quantum gravity theoretical framework introduced in [1]. In this framework, the degree of quantum delocalization depends on the geometry of the energy distribution along space. This results in a dependence of the critical temperature characterizing the transition to the superconducting phase on the complexity of the structure of a superconductor. We consider concrete examples, ranging from low to high temperature superconductors, and discuss how the critical temperature can be predicted once the quantum gravity effects are taken into account.

  8. Impurity Effects on the Nodal Structure of Anisotropic Superconductors

    E-Print Network [OSTI]

    Naoyuki Miyata

    2011-06-21

    For anisotropic superconductors, the gap function belongs to an irreducible representation of the point group of crystals, which determines the nodal structure of the gap function. Impurity effects on anisotropic superconductors have been treated by the Born or T-matrix approximation by which only a partial sum of the pertutbation series is calculated. Instead, we take into acount all terms of the perturbation series. As a result, we find that the introduction of nonmagnetic impurities does not change the nodal structure in all cases. We also find how to obtain nodes of the gap function and show the list for $O_{h}$, $D_{4h}$, and $D_{6h}$.

  9. Universality of critical magnetic field in holographic superconductor

    E-Print Network [OSTI]

    D. Momeni; R. Myrzakulov

    2015-02-11

    In this letter we study aspects of the holographic superconductors analytically in the presence of a constant external magnetic field. We show that the critical temperature and critical magnetic field can be calculated at nonzero temperature. We detect the Meissner effect in such superconductors. A universal relation between black hole mass $ M$ and critical magnetic field $H_c$ is proposed as $\\frac{H_c}{M^{2/3}}\\leq 0.687365$. We discuss some aspects of phase transition in terms of black hole entropy and the Bekenstein's entropy to energy upper bound.

  10. Generalized Ginzburg-Landau models for non-conventional superconductors

    E-Print Network [OSTI]

    S. Esposito; G. Salesi

    2009-06-20

    We review some recent extensions of the Ginzburg-Landau model able to describe several properties of non-conventional superconductors. In the first extension, s-wave superconductors endowed with two different critical temperatures are considered, their main thermodynamical and magnetic properties being calculated and discussed. Instead in the second extension we describe spin-triplet superconductivity (with a single critical temperature), studying in detail the main predicted physical properties. A thorough discussion of the peculiar predictions of our models and their physical consequences is as well performed.

  11. Aluminum-stabilized Nb/sub 3/Sn superconductor

    DOE Patents [OSTI]

    Scanlan, R.M.

    1984-02-10

    This patent discloses an aluminum-stabilized Nb/sub 3/Sn superconductor and process for producing same, utilizing ultrapure aluminum. Ductile components are co-drawn with aluminum to produce a conductor suitable for winding magnets. After winding, the conductor is heated to convert it to the brittle Nb/sub 3/Sn superconductor phase, using a temperature high enough to perform the transformation but still below the melting point of the aluminum. This results in reaction of substantially all of the niobium, while providing stabilization and react-in-place features which are beneficial in the fabrication of magnets utilizing superconducting materials.

  12. Aluminum-stabilized Nb[sub 3]Sn superconductor

    DOE Patents [OSTI]

    Scanlan, R.M.

    1988-05-10

    Disclosed are an aluminum-stabilized Nb[sub 3]Sn superconductor and process for producing same, utilizing ultrapure aluminum. Ductile components are co-drawn with aluminum to produce a conductor suitable for winding magnets. After winding, the conductor is heated to convert it to the brittle Nb[sub 3]Sn superconductor phase, using a temperature high enough to perform the transformation but still below the melting point of the aluminum. This results in reaction of substantially all of the niobium, while providing stabilization and react-in-place features which are beneficial in the fabrication of magnets utilizing superconducting materials. 4 figs.

  13. Product Information Management 2004 IBM Corporation

    E-Print Network [OSTI]

    Brock, David

    Product Information Management © 2004 IBM Corporation Intelligent Networks MIT Smart World 2004 Center © 2004 IBM Corporation2 Networks are both clusters of computers and clusters of people! We now use © 2004 IBM Corporation3 Three looks into Intelligent Networks Global Data Synchronization Electronic

  14. Corporate Headquarters 317 Route 104

    E-Print Network [OSTI]

    Firestone, Jeremy

    utilizing wind industry best practices, setbacks from residential and/or sensitive environmental areas areas to evaluate the shadow flicker impacts from the UD wind turbine. The receptors are representative@sed-net.com Sustainable Energy Developments, Inc. is a New York Corporation Founded April 2002 Shadow Flicker Analysis

  15. Hindawi Publishing Corporation Prostate Cancer

    E-Print Network [OSTI]

    Ahn, Hongshik

    Hindawi Publishing Corporation Prostate Cancer Volume 2011, Article ID 176164, 7 pages doi:10.1155/2011/176164 Clinical Study Effect of Zoledronic Acid on Bone Mineral Density in Men with Prostate Cancer Receiving cancer is well recognized. We assessed the effects of quarterly infusion of zoledronic acid on bone

  16. Coups, Corporations, and Classified Information

    E-Print Network [OSTI]

    Kaplan, Ethan; Dube, Arindrajit; Naidu, Suresh

    2008-01-01

    of Its Operations in Guatemala, 1952-1954, Stanford Uni-R.H. (1983), The CIA in Guatemala: The Foreign Policy ofthe American Coup in Guatemala , Harvard University Press. [

  17. Method of producing Pb-stabilized superconductor precursors and method of producing superconductor articles therefrom

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); Hsu, Huey S. (Knoxville, TN); Brynestad, Jorulf (Oak Ridge, TN)

    1995-01-01

    Metal oxide superconductor powder precursors are prepared in an aerosol pyrolysis process. A solution of the metal cations is introduced into a furnace at 600.degree.-1000.degree. C. for 0.1 to 60 seconds. The process produces micron to submicron size powders without the usual loss of the lead stabilizer. The resulting powders have a narrow particle size distribution, a small grain size, and are readily converted to a superconducting composition upon subsequent heat treatment. The precursors are placed in a metal body deformed to form a wire or tape and heated to form a superconducting article. The fine powders permit a substantial reduction in heat treatment time, thus enabling a continuous processing of the powders into superconducting wire, tape or multifilamentary articles by the powder-in-tube process.

  18. Method of producing Pb-stabilized superconductor precursors and method of producing superconductor articles therefrom

    DOE Patents [OSTI]

    Kroeger, D.M.; Hsu, H.S.; Brynestad, J.

    1995-03-07

    Metal oxide superconductor powder precursors are prepared in an aerosol pyrolysis process. A solution of the metal cations is introduced into a furnace at 600--1,000 C for 0.1 to 60 seconds. The process produces micron to submicron size powders without the usual loss of the lead stabilizer. The resulting powders have a narrow particle size distribution, a small grain size, and are readily converted to a superconducting composition upon subsequent heat treatment. The precursors are placed in a metal body deformed to form a wire or tape and heated to form a superconducting article. The fine powders permit a substantial reduction in heat treatment time, thus enabling a continuous processing of the powders into superconducting wire, tape or multifilamentary articles by the powder-in-tube process. 3 figs.

  19. Transport theory and low energy properties of colour superconductors

    E-Print Network [OSTI]

    Daniel F. Litim

    2001-11-12

    The one-loop polarisation tensor and the propagation of ``in-medium'' photons of colour superconductors in the 2SC and CFL phase is discussed. For a study of thermal corrections to the low energy effective theory in the 2SC phase, a classical transport theory for fermionic quasiparticles is invoked.

  20. -STABILITY AND VORTEX MOTION IN TYPE II SUPERCONDUCTORS

    E-Print Network [OSTI]

    Spirn, Daniel

    -STABILITY AND VORTEX MOTION IN TYPE II SUPERCONDUCTORS MATTHIAS KURZKE AND DANIEL SPIRN Abstract. 1. Introduction 1.1. Physical background. The evolution of a superconducting material is usu- ally of the magnetic field and the electric field potential for a superconducting sample R2 . The parameter

  1. Numerical Approximation of Vortex Density Evolution in a Superconductor.

    E-Print Network [OSTI]

    Styles, Vanessa

    Numerical Approximation of Vortex Density Evolution in a Superconductor. C.M. Elliott & V. Styles Abstract A #12;nite volume/element approximation of a mean #12;eld model of superconducting vortices in one approximations of a two-dimensional version of the mean #12;eld model of superconducting vortices considered

  2. Vortex pinning by inhomogeneities in type-II superconductors

    E-Print Network [OSTI]

    Chapman, Jon

    Vortex pinning by inhomogeneities in type-II superconductors S.J. Chapman #3;y G. Richardson zx of a curvilinear vortex in an inhomogeneous type-II superconducting material in the limit as the vortex core radius of the superconducting electrons acts as a pinning potential for the vortex, so that vortices will be attracted

  3. Process for the production of superconductor containing filaments

    DOE Patents [OSTI]

    Tuominen, Olli P. (Candler, NC); Hoyt, Matthew B. (Arden, NC); Mitchell, David F. (Asheville, NC); Morgan, Carol W. (Asheville, NC); Roberts, Clyde Gordon (Asheville, NC); Tyler, Robert A. (Canton, NC)

    2002-01-01

    Superconductor containing filaments having embedments of superconducting material surrounded by a rayon matrix are formed by preparing a liquid suspension which contains at least 10 weight percent superconducting material; forming a multicomponent filament having a core of the suspension and a viscose sheath which contains cellulose xanthate; and thereafter, regenerating cellulose from the cellulose xanthate to form a rayon matrix.

  4. Nonlinear response of superconductors to alternating fields and currents

    SciTech Connect (OSTI)

    McDonald, J.

    1997-10-08

    This report discusses the following topics on superconductivity: nonlinearities in hard superconductors such as surface impedance of a type II superconductimg half space and harmonic generation and intermodulation due to alternating transport currents; and nonlinearities in superconducting weak links such as harmonic generation by a long Josephson Junction in a superconducting slab.

  5. Theory of reduced superfluid density in underdoped cuprate superconductors 

    E-Print Network [OSTI]

    Lee, Wei-Cheng; Sinova, Jairo; Burkov, A. A.; Joglekar, Yogesh; MacDonald, A. H.

    2008-01-01

    on the following general expression for the phase stiffness of a superconductor: ? = 1 A d2E dP2 , ?1? where A is the area of the system, P? is the pairing wave vector,7 and E is the total energy including both mean-field and correlation contributions, E=EMF...

  6. Conditions for stimulated emission in anomalous gravity-superconductors interactions

    E-Print Network [OSTI]

    G. Modanese; T. Junker

    2009-08-19

    Several authors have studied the generation of gravitational fields by condensed-matter systems in non-extreme density conditions. General Relativity and lowest-order perturbative Quantum Gravity predict in this case an extremely small emission rate, so these phenomena can become relevant only if some strong quantum effect occurs. Quantum aspects of gravity are still poorly understood. It is believed that they could play a role in systems which exhibit macroscopic quantum coherence, like superconductors and superfluids, leading to an "anomalous" coupling between matter and field. We mention here recent work in this field by Woods, Chiao, Becker, Agop et al., Ummarino, Kiefer and Weber. New results are presented concerning anomalous stimulated gravitational emission in a layered superconductor like YBCO. We model the superconductor as an array of intrinsic Josephson junctions. The superconducting parameters are defined by our preliminary measurements with melt-textured samples. We write explicitly and solve numerically the Josephson equations which give the normal and super components of the total current in the superconductor, and derive from this the total available power P=IV. Then, assuming that the coefficients A and B for spontaneous and stimulated gravitational emission are known, we apply to this case the Frantz-Nodvik equation for a laser amplifier. The equation is suitably modified in order to allow for a "continuous pumping" given by an oscillating transport current. The conclusions are relevant for the evaluation of gravitational emission from superconductors. We find that even if the A and B coefficients are anomalously large (possibly because of the Quantum Gravity effects mentioned above), the conditions for stimulated emission are quite strict and the emission rate strongly limited by the IV value.

  7. Corporate Exemption | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, HawaiiCorporate Depreciation

  8. A Review of "The Networked Wilderness: Communicating in Early New England" by Matt Cohen, "Errands into the Metropolis: New England Dissidents in Revolutionary London" by Jonathan Beecher Field and "Dissenting Bodies: Corporealities in Early New England" by Martha L. Finch. “Resituating Anglo-American Colonial Textuality” 

    E-Print Network [OSTI]

    Scheick, William J.

    2010-01-01

    . Dissenting Bodies: Corporealities in Early New England. New York: Columbia University Press, 2010. xvi + 274. $45.00. Francis Bacon?s understanding of rhetoric as merely a mechanism for disputation seems downright tepid compared to Plato?s contention... ventures. But, as Sarah Irving has explained ??In a Pure Soil?: Colonial Anxieties in the Work of Francis Bacon? (History of European Ideas 32 [2006]: 249-62), this natural philosopher held reservations about the possible deleterious effects of English...

  9. Improved ambient-pressure organic superconductor. [Bis(ethylenedithio)TTF-MX/sub 2/

    DOE Patents [OSTI]

    Williams, J.M.; Wang, Hsien-Hau; Beno, M.A.

    1985-05-29

    Disclosed is a new class of organic superconductors having the formula (ET)/sub 2/MX/sub 2/ wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET)/sub 2/AuI/sub 2/ exhibits a transition temperature of 5/sup 0/K which is high for organic superconductors.

  10. Ambient-temperature superconductor symetrical metal-dihalide bis-(ethylenedithio)-tetrathiafulvalene compounds

    DOE Patents [OSTI]

    Williams, Jack M. (Downers Grove, IL); Wang, Hsien-Hau (Willowbrook, IL); Beno, Mark A. (Woodridge, IL)

    1987-01-01

    A new class of organic superconductors having the formula (ET).sub.2 MX.sub.2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET).sub.2 AuI.sub.2 exhibits a transition temperature of 5 K. which is high for organic superconductors.

  11. THERMOELECTRIC GENERATION OF CHARGE IMBALANCE AT A SUPERCONDUCTOR-NORMAL METAL INTERFACE

    E-Print Network [OSTI]

    Van Harlingen, D.J.

    2014-01-01

    in Non-equilibrium Superconductivity, Phonons, and KapitzaD. Bedard, in SQUID: Superconducting Quantum Inter- ference1 (a) At a normal metal-superconductor interface, an applied

  12. Optical non-reciprocity in magnetic structures related to high-T_c superconductors

    E-Print Network [OSTI]

    Orenstein, Joseph W

    2012-01-01

    cuprates. High-T c superconductivity in the cuprates remainstemperature for superconductivity. Instead, the mostrelated to high-T c superconductors J. Orenstein Department

  13. Correction of Magnetization Sextupole in One-Meter Long Dipole Magnets Using Passing Superconductor

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    Fermilab Passive SuperconductorTest at the ICFA Workshop,Maydipole magnet. The superconductorin the passivecorrectorcanmagnetizationof the superconductingcable in the test

  14. Passive Superconductor: A Viable Method of Controlling Magnetization Multipoles in the SSC Dipole

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    335. M. N. Wilson, Superconductjng Magnets, Clarendon OxfordNiobium-Titanium Superconductors, University of Wisconsin,Residual Fields in Superconducting Magnets", published in

  15. NEC Corporation Volkswagen Group of America

    E-Print Network [OSTI]

    FELLOWS Cisco Intel NEC Corporation Volkswagen Group of America RESEARCH CONTRACTS AND SPECIAL Univision Viacom Volkswagen Group of America, Inc. VSP Global Welspun ENDOWMENT AND NAMING GRANTS Asahi

  16. BARNSTEAD|THERMOLYNE CORPORATION High Temperature

    E-Print Network [OSTI]

    Walker, D. Greg

    1 BARNSTEAD|THERMOLYNE CORPORATION High Temperature Muffle Furnace OPERATION MANUAL AND PARTS LIST ....................................................................................................................................................13 Furnace Connection: .........................................................................................................................13 General Operation of Furnace

  17. Resources, real options, and corporate strategy

    E-Print Network [OSTI]

    Bernardo, Antonio; Chowdhry, Bhagwan

    1998-01-01

    211–234 Resources, real options, and corporate strategy $D83; G30; G31 Keywords: Real options; Valuation; Corporateparticipants at the Real Options Conference at Northwestern

  18. Corporate Performance Measures Definitions | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Corporate Performance Measures Plutonium Metal or Oxide packaged for long-term storage (number of containers): Certified DOE storagetreatmentdisposal (STD) 3013 containers (or...

  19. PPP Equipment Corporation | Open Energy Information

    Open Energy Info (EERE)

    PPP Equipment Corporation Sector: Solar Product: PPP-E designs, produces and markets Chemical Vapor Deposition (CVD) reactors and converter systems producing high-purity...

  20. Interplay between interband coupling and ferromagnetism in iron pnictide superconductor/ferromagnet/iron pnictide superconductor junctions

    SciTech Connect (OSTI)

    Liu, S. Y.; Tao, Y. C.; Hu, J. G.

    2014-08-28

    An extended eight-component Bogoliubov-de Gennes equation is applied to study the Josephson effect between iron-based superconductors (SCs) with s{sub ±}-wave pairing symmetry, separated by an ferromagnet (FM). The feature of damped oscillations of critical Josephson current as a function of FM thickness, the split of the peaks induced by the interband coupling is much different from that for the junction with the s{sub ±}-wave SCs replaced by s{sub ++}-wave ones. In particular, a 0?? transition as a function of interband coupling strength ? is found to always exhibit with the corresponding dip shifting toward the larger ? due to enhancing the spin polarization in the FM, while there exits no 0?? transition for the SC with s{sub ++}-wave pairing symmetry. The two features can be used to identify the pairing symmetry in the iron pnictide SC different from the s{sub ++}-wave one in MgB{sub 2}. Experimentally, by adjusting the doping level in the s{sub ±}-wave SCs, one can vary ?.

  1. Distinct magnetic signatures of fractional vortex configurations in multiband superconductors

    SciTech Connect (OSTI)

    Silva, R. M. da; Domínguez, D.; Aguiar, J. Albino

    2014-12-08

    Vortices carrying fractions of a flux quantum are predicted to exist in multiband superconductors, where vortex core can split between multiple band-specific components of the superconducting condensate. Using the two-component Ginzburg-Landau model, we examine such vortex configurations in a two-band superconducting slab in parallel magnetic field. The fractional vortices appear due to the band-selective vortex penetration caused by different thresholds for vortex entry within each band-condensate, and stabilize near the edges of the sample. We show that the resulting fractional vortex configurations leave distinct fingerprints in the static measurements of the magnetization, as well as in ac dynamic measurements of the magnetic susceptibility, both of which can be readily used for the detection of these fascinating vortex states in several existing multiband superconductors.

  2. Design of High Field Solenoids made of High Temperature Superconductors

    SciTech Connect (OSTI)

    Bartalesi, Antonio; /Pisa U.

    2010-12-01

    This thesis starts from the analytical mechanical analysis of a superconducting solenoid, loaded by self generated Lorentz forces. Also, a finite element model is proposed and verified with the analytical results. To study the anisotropic behavior of a coil made by layers of superconductor and insulation, a finite element meso-mechanic model is proposed and designed. The resulting material properties are then used in the main solenoid analysis. In parallel, design work is performed as well: an existing Insert Test Facility (ITF) is adapted and structurally verified to support a coil made of YBa{sub 2}Cu{sub 3}O{sub 7}, a High Temperature Superconductor (HTS). Finally, a technological winding process was proposed and the required tooling is designed.

  3. Characteristic length of an AdS/CFT superconductor

    E-Print Network [OSTI]

    Kengo Maeda; Takashi Okamura

    2008-10-30

    We investigate in more detail the holographic model of a superconductor recently found by Hartnoll, Herzog, and Horowitz [Phys. Rev. Lett. 101, 031601], which is constructed from a condensate of a charged scalar field in AdS_4-Schwarzschild background. By analytically studying the perturbation of the gravitational system near the critical temperature T_c, we obtain the superconducting coherence length proportional to 1/\\sqrt{1-T/T_c} via AdS/CFT correspondence. By adding a small external homogeneous magnetic field to the system, we find that a stationary diamagnetic current proportional to the square of the order parameter is induced by the magnetic field. These results agree with Ginzburg-Landau theory and strongly support the idea that a superconductor can be described by a charged scalar field on a black hole via AdS/CFT duality.

  4. Entanglement modes and topological phase transitions in superconductors

    E-Print Network [OSTI]

    T. P. Oliveira; P. D. Sacramento

    2015-03-17

    Topological insulators and topological superconductors display various topological phases that are characterized by different Chern numbers or by gapless edge states. In this work we show that various quantum information methods such as the von Neumann entropy, entanglement spectrum, fidelity, and fidelity spectrum may be used to detect and distinguish topological phases and their transitions. As an example we consider a two-dimensional $p$-wave superconductor, with Rashba spin-orbit coupling and a Zeeman term. The nature of the phases and their changes are clarified by the eigenvectors of the $k$-space reduced density matrix. We show that in the topologically nontrivial phases the highest weight eigenvector is fully aligned with the triplet pairing state. A signature of the various phase transitions between two points on the parameter space is encoded in the $k$-space fidelity operator.

  5. BASF Corporate Energy Management Process 

    E-Print Network [OSTI]

    Geiger, T.

    2015-01-01

    .E.M Vice President, Energy and Verbund Management Industrial Energy Technology Conference June 4, 2015 1 Proceedings of the Thrity-Seventh Industrial Energy Technology Conference New Orleans, LA. June 2-4, 2015 ESL-IE-15-06-42 150 years Corporate Energy... Technology Conference New Orleans, LA. June 2-4, 2015 ESL-IE-15-06-42 150 years • The world’s leading chemical company • Serves all major industries • 380 production facilities including six Verbund sites • World-class, innovative, high-value products...

  6. Terrawatt Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013) | Opensource HistoryTerraWatt Power JumpCorporation Jump to:

  7. Emcore Corporation | Open Energy Information

    Open Energy Info (EERE)

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  8. Ennovate Corporation | Open Energy Information

    Open Energy Info (EERE)

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  9. Itochu Corporation | Open Energy Information

    Open Energy Info (EERE)

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  10. Octillion Corporation | Open Energy Information

    Open Energy Info (EERE)

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  11. Odyne Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI VenturesNewSt. Louis,EnergyOctillion Corporation Jump to:Odessa,

  12. Pemery Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio Program |ViewIllinois: EnergyPelham, NewPemery Corporation Jump to:

  13. Ember Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:of theClimateElgin, Illinois: EnergyEllergreenCorporation

  14. Arzeda Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to: navigation,Summaries |AreteArianeEnergyArzeda Corporation

  15. Kirmart Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA) Jump to: navigation,WindJustKirmart Corporation

  16. Arete Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to: navigation,Summaries |Arete Corporation Jump to:

  17. Liquafaction Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EAInvervarLeeds, UnitedLiberty PowerLineLiquafaction Corporation Jump

  18. NEO Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation,Mereg GmbHMontebalitoMtMxEnergyDatabaseNEO Corporation

  19. Hilti Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen River PowerHeckertHidrotermica JumpPowerHilti Corporation

  20. Ryuseki Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,EnergyEastCarbon Development | Open EnergyRyuseki Corporation

  1. Tokuyama Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna Group Jump to:Tokuyama Corporation Place:

  2. Sipex Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbH Jump to:Idaho-Utah |Renovables SCRSipex Corporation

  3. Synapsense Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEuropeEnergySustainabilitySynapsense Corporation Jump to:

  4. TDK Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEuropeEnergySustainabilitySynapsenseSyracuse,TDK Corporation

  5. Ultralife Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown(LECBP)BioGen LLCANDUltimate Best BuyCorporation

  6. Vairex Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairex Corporation Jump to: navigation, search Name:

  7. Carbona Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village, Arkansas:Fund for Spanish FirmsCarbona Corporation Jump

  8. Corporate Depreciation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, HawaiiCorporate Depreciation Jump

  9. ISE Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on Openei | Open Energy2010) |OutlookINDEXISE Corporation

  10. ZTEK Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan) JumpZhuyuan Electric Development Co LtdZZTEK Corporation

  11. CDI Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County, California: Energy Resources Jump to:Information72CDI Corporation

  12. corporate | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos AlamosSimulation Initiative7 BoundarycontainersconvertCorporate

  13. Kenetech Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA) Jump to: navigation,WindJust WindCorporation Jump

  14. Chiral Ground States in a Frustrated Holographic Superconductor

    E-Print Network [OSTI]

    Mitsuhiro Nishida

    2015-09-01

    Frustration is an important phenomenon in condensed matter physics because it can introduce a new order parameter such as chirality. Towards understanding a mechanism of the frustration in strongly correlated systems, we study a holographic superconductor model with three scalar fields and an interband Josephson coupling, which is important for the frustration. We analyze free energy of solutions of the model to determine ground states. We find chiral ground states, which have nonzero chirality.

  15. Holographic Superconductors with the General $RF^2$-type Couplings

    E-Print Network [OSTI]

    Özcan Sert

    2015-07-25

    We explore the effects of the general non-minimally coupled $RF^2$-type couplings on the holographic superconductors numerically in the Schwarzschild-AdS background. We calculate the conductivity of the model and find that the increase of parameters $a_1$ and $\\beta$ lead to the lower gap frequency. Thus, we can obtain the weakly coupled BCS value $ \\omega_g/T_c \\approx 3.5$ for some coupling parameters of this model.

  16. Generation of Closed Timelike Curves with Rotating Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2007-01-19

    The spacetime metric around a rotating SuperConductive Ring (SCR) is deduced from the gravitomagnetic London moment in rotating superconductors. It is shown that theoretically it is possible to generate Closed Timelike Curves (CTC) with rotating SCRs. The possibility to use these CTC's to travel in time as initially idealized by G\\"{o}del is investigated. It is shown however, that from a technology and experimental point of view these ideas are impossible to implement in the present context.

  17. Process for producing fine and ultrafine filament superconductor wire

    DOE Patents [OSTI]

    Kanithi, Hem C. (15 Briar Ct., Chesire, CT 06410)

    1992-01-01

    A process for producing a superconductor wire made up of a large number of round monofilament rods is provided for, comprising assembling a multiplicity of round monofilaments inside each of a multiplicity of thin wall hexagonal tubes and then assembling a number of said thin wall hexagonal tubes within an extrusion can and subsequently consolidating, extruding and drawing the entire assembly down to the desired wire size.

  18. Process for producing fine and ultrafine filament superconductor wire

    DOE Patents [OSTI]

    Kanithi, H.C.

    1992-02-18

    A process for producing a superconductor wire made up of a large number of round monofilament rods is provided for, comprising assembling a multiplicity of round monofilaments inside each of a multiplicity of thin wall hexagonal tubes and then assembling a number of said thin wall hexagonal tubes within an extrusion can and subsequently consolidating, extruding and drawing the entire assembly down to the desired wire size. 8 figs.

  19. Low temperature upper critical eld studies in organic superconductor

    E-Print Network [OSTI]

    Zuo, Fulin

    Low temperature upper critical eld studies in organic superconductor 00 -BEDT-TTF2SF5CH2CF2SO3 F 00-BEDT-TTF2SF5CH2CF2SO3: For eld parallel to the superconducting layers, the upper critical eldCH2CF2SO3 at low temperatures and eld up to 18 Tesla. For eld parallel to the planes, the upper

  20. Holographic Superconductors with the General $RF^2$-type Couplings

    E-Print Network [OSTI]

    Sert, Özcan

    2015-01-01

    We explore the effects of the general non-minimally coupled $RF^2$-type couplings on the holographic superconductors numerically in the Schwarzschild-AdS background. We calculate the conductivity of the model and find that the increase of parameters $a_1$ and $\\beta$ lead to the lower gap frequency. Thus, we can obtain the weakly coupled BCS value $ \\omega_g/T_c \\approx 3.5$ for some coupling parameters of this model.

  1. Cryocooler applications for high-temperature superconductor magnetic bearings.

    SciTech Connect (OSTI)

    Niemann, R. C.

    1998-05-22

    The efficiency and stability of rotational magnetic suspension systems are enhanced by the use of high-temperature superconductor (HTS) magnetic bearings. Fundamental aspects of the HTS magnetic bearings and rotational magnetic suspension are presented. HTS cooling can be by liquid cryogen bath immersion or by direct conduction, and thus there are various applications and integration issues for cryocoolers. Among the numerous cryocooler aspects to be considered are installation; operating temperature; losses; and vacuum pumping.

  2. Chiral Ground States in a Frustrated Holographic Superconductor

    E-Print Network [OSTI]

    Mitsuhiro Nishida

    2015-02-28

    Frustration is an important phenomenon in condensed matter physics because it can introduce a new order parameter such as chirality. Towards understanding a mechanism of the frustration in strongly correlated systems, we study a holographic superconductor model with three scalar fields and an interband Josephson coupling, which is important for the frustration. We analyze free energy of solutions of the model to determine ground states. We find chiral ground states, which have nonzero chirality.

  3. Statement by Harvard Corporation Committee on Shareholder Responsibility (CCSR) Regarding Stock in China Petroleum and Chemical Corporation (Sinopec Corporation)

    E-Print Network [OSTI]

    , Petrodar announced that its first shipment of crude oil would be shipped from Sudan in January 2006Statement by Harvard Corporation Committee on Shareholder Responsibility (CCSR) Regarding Stock the Harvard Corporation's decision to direct Harvard Management Company (HMC) to divest itself of stock held

  4. A superconductor to superfluid phase transition in liquid metallic hydrogen

    E-Print Network [OSTI]

    Egor Babaev; Asle Sudbo; N. W. Ashcroft

    2004-10-18

    Although hydrogen is the simplest of atoms, it does not form the simplest of solids or liquids. Quantum effects in these phases are considerable (a consequence of the light proton mass) and they have a demonstrable and often puzzling influence on many physical properties, including spatial order. To date, the structure of dense hydrogen remains experimentally elusive. Recent studies of the melting curve of hydrogen indicate that at high (but experimentally accessible) pressures, compressed hydrogen will adopt a liquid state, even at low temperatures. In reaching this phase, hydrogen is also projected to pass through an insulator-to-metal transition. This raises the possibility of new state of matter: a near ground-state liquid metal, and its ordered states in the quantum domain. Ordered quantum fluids are traditionally categorized as superconductors or superfluids; these respective systems feature dissipationless electrical currents or mass flow. Here we report an analysis based on topological arguments of the projected phase of liquid metallic hydrogen, finding that it may represent a new type of ordered quantum fluid. Specifically, we show that liquid metallic hydrogen cannot be categorized exclusively as a superconductor or superfluid. We predict that, in the presence of a magnetic field, liquid metallic hydrogen will exhibit several phase transitions to ordered states, ranging from superconductors to superfluids.

  5. Topological insulators/superconductors: Potential future electronic materials

    SciTech Connect (OSTI)

    Hor, Y. S. [Department of Physics, Missouri University of Science and Technology, Rolla, MO 65409 (United States)

    2014-03-05

    A new material called topological insulator has been discovered and becomes one of the fastest growing field in condensed matter physics. Topological insulator is a new quantum phase of matter which has Dirac-like conductivity on its surface, but bulk insulator through its interior. It is considered a challenging problem for the surface transport measurements because of dominant internal conductance due to imperfections of the existing crystals of topological insulators. By a proper method, the internal bulk conduction can be suppressed in a topological insulator, and permit the detection of the surface currents which is necessary for future fault-tolerant quantum computing applications. Doped topological insulators have depicted a large variety of bulk physical properties ranging from magnetic to superconducting behaviors. By chemical doping, a TI can change into a bulk superconductor. Nb{sub x}Bi{sub 2}Se{sub 3} is shown to be a superconductor with T{sub c} ? 3.2 K, which could be a potential candidate for a topological superconductor.

  6. Measurement of Gravitomagnetic and Acceleration Fields Around Rotating Superconductors

    E-Print Network [OSTI]

    M. Tajmar; F. Plesescu; B. Seifert; K. Marhold

    2006-10-17

    It is well known that a rotating superconductor produces a magnetic field proportional to its angular velocity. The authors conjectured earlier, that in addition to this so-called London moment, also a large gravitomagnetic field should appear to explain an apparent mass increase of Niobium Cooper-pairs. A similar field is predicted from Einstein's general relativity theory and the presently observed amount of dark energy in the universe. An experimental facility was designed and built to measure small acceleration fields as well as gravitomagnetic fields in the vicinity of a fast rotating and accelerating superconductor in order to detect this so-called gravitomagnetic London moment. This paper summarizes the efforts and results that have been obtained so far. Measurements with Niobium superconductors indeed show first signs which appear to be within a factor of 2 of our theoretical prediction. Possible error sources as well as the experimental difficulties are reviewed and discussed. If the gravitomagnetic London moment indeed exists, acceleration fields could be produced in a laboratory environment.

  7. Testing Loop Quantum Gravity and Electromagnetic Dark Energy in Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2009-08-06

    In 1989 Cabrera and Tate reported an anomalous excess of mass of the Cooper pairs in rotating thin Niobium rings. So far, this experimental result never received a proper theoretical explanation in the context of superconductor's physics. In the present work we argue that what Cabrera and Tate interpreted as an anomalous excess of mass can also be associated with a deviation from the classical gravitomagnetic Larmor theorem due to the presence of dark energy in the superconductor, as well as with the discrete structure of the area of the superconducting Niobium ring as predicted by Loop Quantum Gravity. From Cabrera and Tate measurements we deduce that the quantization of spacetime in superconducting circular rings occurs at the Planck-Einstein scale $l_{PE} = (\\hbar G/c^3 \\Lambda)^{1/4}\\sim 3.77\\times 10 ^{-5} m$, instead of the Planck scale $l_{P} =(\\hbar G / c^3)^{1/2}=1.61 \\times 10 ^{-35} m$, with an Immirzi parameter which depends on the specific critical temperature of the superconducting material and on the area of the ring. The stephan-Boltzmann law for quantized areas delimited by superconducting rings is predicted, and an experimental concept based on the electromagnetic black-body radiation emitted by this surfaces, is proposed to test loop quantum gravity and electromagnetic dark energy in superconductors.

  8. EA-356 J.P. Morgan Commodities Canada Corporation | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    EA-356 J.P. Morgan Commodities Canada Corporation EA-356 J.P. Morgan Commodities Canada Corporation Order authorizing J.P. Morgan Commodities Canada Corporation to export electric...

  9. Is Sustainability Attractive for Corporate Real Estate

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Is Sustainability Attractive for Corporate Real Estate Decisions ? Research Center ESSEC Working Is Sustainability Attractive for Corporate Real Estate Decisions? Ingrid Nappi-Choulet Professor ESSEC BUSINESS SCHOOL Real Estate and Sustainable Development Chair nappi@essec.fr Aurélien Décamps Researcher ESSEC

  10. 2011 IBM Corporation Computer system energy management

    E-Print Network [OSTI]

    Shi, Weisong

    © 2011 IBM Corporation Computer system energy management Charles Lefurgy 28 July 2011 #12;© 2011 IBM Corporation2 Outline A short history of server power management POWER7 EnergyScale AMESTER power management 2010: POWER7 uses DDR3 self-refresh mode POWER7 with Turbo mode Partition-aware power capping 2011

  11. Corporate Training On-Site Online Global

    E-Print Network [OSTI]

    Barrett, Jeffrey A.

    MAKE THE RIGHT MOVE Corporate Training On-Site · Online · Global IMPROVE YOUR COMPETITIVE ADVANTAGE WITH WORLD-CLASS ON-SITE AND ONLINE SOLUTIONS TAILORED TO MEET YOUR BUSINESS AND EMPLOYEE TRAINING NEEDS a competitive advantage depends on how well your staff executes. UCIrvineExtension's Corporate Training helps

  12. The MITRE Corporation 7515 Colshire Drive

    E-Print Network [OSTI]

    Tritium JASON The MITRE Corporation 7515 Colshire Drive McLean, Virginia 22102-7508 (703) 983 ORGANIZATION REPORT NUMBER The MITRE Corporation JASON Program Office 7515 Colshire Drive McLean, Virginia of tritium per year of operation which must be bred as part of the overall reactor cycle. Traditionally

  13. Comments of New England Electric Transmission Corporation on...

    Office of Environmental Management (EM)

    out of time and comments of New England Electric Transmission Corporation, New England Hydro-Transmission Electric Company, Inc. and New England Hydro-Transmission Corporation and...

  14. EA-1631: Beacon Power Corporation Frequency Regulation Facility...

    Office of Environmental Management (EM)

    1: Beacon Power Corporation Frequency Regulation Facility in Stephentown, NY EA-1631: Beacon Power Corporation Frequency Regulation Facility in Stephentown, NY February 2, 2009...

  15. IT Capital Planning Corporate Management Improvement Program (CMIP)

    Broader source: Energy.gov [DOE]

    The Corporate Management Improvement Program (CMIP) was initiated by the Department in recognition of the fact that corporate legacy systems that support administrative functions were nearing the...

  16. Sylvania Corporation, Hicksville, NY and Bayside, NY - Addendum...

    Energy Savers [EERE]

    NY - Addendum to July 8, 2004 Sylvania Corporation, Hicksville, NY and Bayside, NY - Addendum to July 8, 2004 Sylvania Corporation, Hicksville, NY and Bayside, NY - Addendum to...

  17. Trony Solar Corporation formerly Shenzhen Trony Science Technology...

    Open Energy Info (EERE)

    Trony Solar Corporation formerly Shenzhen Trony Science Technology Development Co Ltd Jump to: navigation, search Name: Trony Solar Corporation (formerly Shenzhen Trony Science &...

  18. New York State Electric & Gas Corporation Smart Grid Demonstration...

    Open Energy Info (EERE)

    New York State Electric & Gas Corporation Smart Grid Demonstration Project Jump to: navigation, search Project Lead New York State Electric & Gas Corporation Country United States...

  19. EA-1727: AE Polysilicon Corporation Polysilicon Production Facility...

    Office of Environmental Management (EM)

    7: AE Polysilicon Corporation Polysilicon Production Facility in Fairless Hills, PA EA-1727: AE Polysilicon Corporation Polysilicon Production Facility in Fairless Hills, PA...

  20. Shenyang Huachuang Wind Energy Corporation HCWE aka China Creative...

    Open Energy Info (EERE)

    Shenyang Huachuang Wind Energy Corporation HCWE aka China Creative Wind Energy Co Ltd Jump to: navigation, search Name: Shenyang Huachuang Wind Energy Corporation (HCWE) (aka China...

  1. On quasi twodimensional order in XY magnets or superconductors of the second kind.

    E-Print Network [OSTI]

    Boyer, Edmond

    1769 On quasi twodimensional order in XY magnets or superconductors of the second kind. Influence equal. It is argued that this effect could also play an important role in the superconducting case. The situation of oxide superconductors is discussed in this light. J. Phys. France 49 (1988) 1769-1774 OCTOBRE

  2. Suppression of 2 phase-slip due to hidden zero modes in one dimensional topological superconductors

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    Suppression of 2 phase-slip due to hidden zero modes in one dimensional topological superconductors-dimensional topological superconducting wires. These wires have been proposed as building blocks for topologically in decoherence. Phase slips in topological superconductors are peculiar for the reason that they occur

  3. Shapes of flux domains in the intermediate state of type-I superconductors Alan T. Dorsey*

    E-Print Network [OSTI]

    Goldstein, Raymond E.

    as a collection of tense current ribbons flowing along the superconducting-normal interfaces and subject of Landau's original conformal mapping treatment of the laminar state, in which the superconductor-normalShapes of flux domains in the intermediate state of type-I superconductors Alan T. Dorsey

  4. On the regularity of a free boundary for a nonlinear obstacle problem arising in superconductor modelling.

    E-Print Network [OSTI]

    Monneau, Régis

    On the regularity of a free boundary for a nonlinear obstacle problem arising in superconductor of superconductivity. We consider solutions in a Lipschitz bounded open set and prove the regularity of the free-Landau theory for a superconductor with a density of vortices in an interior region whose boundary is a free

  5. Numerical Relaxation Approach for Solving the General Ginzburg-Landau Equations for Type-Ii Superconductors 

    E-Print Network [OSTI]

    WANG, ZD; Hu, Chia-Ren.

    1991-01-01

    A numerical relaxation approach for solving the general Ginzburg-Landau equations for type-II superconductors is developed. It is first applied to an isotropic type-II superconductor near H(c1) in order to establish the reliability and effectiveness...

  6. Preparation of Bi-Sr-Ca-Cu-O superconductors from oxide-glass precursors

    DOE Patents [OSTI]

    Hinks, David G. (Lemont, IL); Capone, II, Donald W. (Northbridge, MA)

    1992-01-01

    A superconductor and precursor therefor from oxide mixtures of Ca, Sr, Bi and Cu. Glass precursors quenched to elevated temperatures result in glass free of crystalline precipitates having enhanced mechanical properties. Superconductors are formed from the glass precursors by heating in the presence of oxygen to a temperature below the melting point of the glass.

  7. Unified picture of the oxygen isotope effect in cuprate superconductors Ho-kwang Mao

    E-Print Network [OSTI]

    Wu, Zhigang

    Unified picture of the oxygen isotope effect in cuprate superconductors Ho-kwang Mao Xiao-Jia Chen, see: Reprints www.pnas.org/misc/reprints.shtml To order reprints, see: Notes: #12;Unified picture present a unified picture of the oxygen isotope effect in cuprate superconductors based on a phonon

  8. Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation’s Cañon City, Colorado, Uranium Mill

    Broader source: Energy.gov [DOE]

    Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation’s Canon City, Colorado, Uranium Mill (April 2005)

  9. 1 1999 Rational Software Corporation The View from the Front

    E-Print Network [OSTI]

    Demurjian, Steven A.

    1 ©1999 Rational Software Corporation 3/7/99 R UML The View from the Front James Rumbaugh 9 March 1999 Rational Software Corporation #12; 2 ©1999 Rational Software Corporation 3/7/99 R Evolution Start 1/95 UML 1.3 RTF report 4/99 OMG feedback #12; 3 ©1999 Rational Software Corporation 3/7/99 R UML

  10. Angular Momentum Mixing in a Non-spherical Color Superconductor

    E-Print Network [OSTI]

    Bo Feng; Defu Hou; Hai-cang Ren

    2007-11-28

    We study the angular momentum mixing effects in the color superconductor with non-spherical pairing. We first clarify the concept of the angular momentum mixing with a toy model for non-relativistic and spinless fermions. Then we derive the gap equation for the polar phase of dense QCD by minimizing the CJT free energy. The solution of the gap equation consists of all angular momentum partial waves of odd parity. The corresponding free energy is found to be lower than that reported in the literature with p-wave only.

  11. Spin-one color superconductors: collective modes and effective Lagrangian

    E-Print Network [OSTI]

    Jin-yi Pang; Tomas Brauner; Qun Wang

    2010-10-11

    We investigate the collective excitations in spin-one color superconductors. We classify the Nambu--Goldstone modes by the pattern of spontaneous symmetry breaking, and then use the Ginzburg--Landau theory to derive their dispersion relations. These soft modes play an important role for the low-energy dynamics of the system such as the transport phenomena and hence are relevant for late-stage evolution of neutron stars. In the case of the color-spin-locking phase, we use a functional technique to obtain the low-energy effective action for the physical Nambu--Goldstone bosons that survive after gauging the color symmetry.

  12. Nearly Perfect Fluidity in a High Temperature Superconductor

    SciTech Connect (OSTI)

    Rameau, J. D.; Reber, T. J.; Yang, H. -B.; Akhanjee, S.; Gu, G. D.; Johnson, P. D.; Campbell, S.

    2014-10-13

    Perfect fluids are characterized as having the smallest ratio of shear viscosity to entropy density, ?/s, consistent with quantum uncertainty and causality. So far, nearly perfect fluids have only been observed in the quark-gluon plasma and in unitary atomic Fermi gases, exotic systems that are amongst the hottest and coldest objects in the known universe, respectively. We use angle resolved photoemission spectroscopy to measure the temperature dependence of an electronic analog of ?/s in an optimally doped cuprate high-temperature superconductor, finding it too is a nearly perfect fluid around, and above, its superconducting transition temperature Tc.

  13. Thin film superconductors and process for making same

    DOE Patents [OSTI]

    Nigrey, P.J.

    1988-01-21

    A process for the preparation of oxide superconductors from high-viscosity non-aqueous solution is described. Solutions of lanthanide nitrates, alkaline earth nitrates and copper nitrates in a 1:2:3 stoichiometric ratio, when added to ethylene glycol containing citric acid solutions, have been used to prepare highly viscous non-aqueous solutions of metal mixed nitrates-citrates. Thin films of these compositions are produced when a layer of the viscous solution is formed on a substrate and subjected to thermal decomposition.

  14. Nearly Perfect Fluidity in a High Temperature Superconductor

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Rameau, J. D.; Reber, T. J.; Yang, H. -B.; Akhanjee, S.; Gu, G. D.; Johnson, P. D.; Campbell, S.

    2014-10-13

    Perfect fluids are characterized as having the smallest ratio of shear viscosity to entropy density, ?/s, consistent with quantum uncertainty and causality. So far, nearly perfect fluids have only been observed in the quark-gluon plasma and in unitary atomic Fermi gases, exotic systems that are amongst the hottest and coldest objects in the known universe, respectively. We use angle resolved photoemission spectroscopy to measure the temperature dependence of an electronic analog of ?/s in an optimally doped cuprate high-temperature superconductor, finding it too is a nearly perfect fluid around, and above, its superconducting transition temperature Tc.

  15. IBM Research Zurich 2010 IBM Corporation

    E-Print Network [OSTI]

    & Computational Science: Business Optimization, Computational Sciences, Data Analytics Systems: Server Technology: Semiconductors, Systems, Beyond the Transistor, Nanotechnology, Biotechnology Computer Science: SecurityIBM Research ­ Zurich © 2010 IBM Corporation IBM Research Zurich A Strategy of Open Innovation Dr

  16. Refundable Clean Heating Fuel Tax Credit (Corporate)

    Broader source: Energy.gov [DOE]

    The state of New York began offering a corporate income tax credit for biodiesel purchases used for residential space heating and water heating beginning in 2006. The original credit was authorized...

  17. Alternative Energy Development Incentive (Corporate) (Utah)

    Broader source: Energy.gov [DOE]

    The Alternative Energy Development Incentive (AEDI) is a post-performance non-refundable tax credit for 75% of new state tax revenues (including, state, corporate, sales and withholding taxes) over...

  18. Harvard University Corporation Committee on Shareholder Responsibility

    E-Print Network [OSTI]

    Schrag, Daniel

    environmental practices (including company efforts to address global warming); human rights; equal employment shareholders. Shareholder proposals addressing corporate governance matters are decided by the Harvard to issues of social responsibility. New topics addressed in 2011 included the environmental risks

  19. Essays on the Market for Corporate Control 

    E-Print Network [OSTI]

    Kim, Hyunjung

    2011-02-22

    This dissertation examines the relative importance of the information effect on corporate takeover in total takeover gains. It develops the measure of information effect based on the residual income valuation model with ...

  20. ArchRock Corporation | Open Energy Information

    Open Energy Info (EERE)

    Arch Rock is a systems and software company that builds products and technology for wireless sensor networks. References: ArchRock Corporation1 This article is a stub. You can...

  1. 3M's Corporate Approach to Energy Management 

    E-Print Network [OSTI]

    Schultz, S. C.; Bingham, P. R.

    2000-01-01

    number of companies have recognized the benefits of developing structured approaches to improving their energy efficiency through means that are also compatible with being environmentally responsible. 3M has long been recognized as a corporate...

  2. Spreadsheet Programming Robin Abraham, Microsoft Corporation

    E-Print Network [OSTI]

    Erwig, Martin

    Spreadsheet Programming Robin Abraham, Microsoft Corporation Margaret Burnett, Oregon State University Martin Erwig, Oregon State University Spreadsheets are among the most widely used programming first discuss how spreadsheet programs are actually functional programs. We then describe concepts

  3. Essays on consumption cycles and corporate finance

    E-Print Network [OSTI]

    Issler, Paulo Floriano

    2013-01-01

    In: The Journal of Finance 41.1, pp. 19–37. Flannery, Markand practice of corporate finance: evidence from the field”.Issues”. In: Journal of Finance 51.5, pp. 1809–33. Hamilton,

  4. Corporate Analysis of DOE Safety Performance

    Broader source: Energy.gov [DOE]

    The Office of Environment, Health, Safety and Security (EHSS), Office of Analysis develops analysis tools and performance dashboards, and conducts analysis of DOE safety performance corporately and on a variety of specific environment, safety and health topics.

  5. Corporate Reporting of Boiler MACT Energy Assessments 

    E-Print Network [OSTI]

    McClain, C.

    2013-01-01

    , but not recordkeeping and reporting costs. Estimating/projected number of affected units Summary of Total Capital and Annual Cost for the New and Existing Sources for the Final Amended Rule Federal Register Volume 78 No. 21 January 31, 2013 40 CFR Part 63 EPA... Orleans, LA. May 21-24, 2013 What are the benefits of Corporate Management? Benefits of Corporate Management EMRS and Boiler MACT Implementation ? Scarce resource management ? Mill Scheduling ? Uniform implementation ? Uniform reporting ESL-IE-13...

  6. Electronic structure, irreversibility line and magnetoresistance of Cu0.3Bi2Se3 superconductor

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hemian, Yi; Gu, Genda; Chen, Chao -Yu; Sun, Xuan; Xie, Zhuo -Jin; Feng, Ya; Liang, Ai -Ji; Peng, Ying -Ying; He, Shao -Long; Zhao, Lin; et al

    2015-06-01

    CuxBi2Se3 is a superconductor that is a potential candidate for topological superconductors. We report our laser-based angle-resolved photoemission measurement on the electronic structure of the CuxBi2Se3 superconductor, and a detailed magneto-resistance measurement in both normal and superconducting states. We find that the topological surface state of the pristine Bi2Se3 topological insulator remains robust after the Cu-intercalation, while the Dirac cone location moves downward due to electron doping. Detailed measurements on the magnetic field-dependence of the resistance in the superconducting state establishes an irreversibility line and gives a value of the upper critical field at zero temperature of ~4000 Oe formore »the Cu0.3Bi2Se3 superconductor with a middle point Tc of 1.9K. The relation between the upper critical field Hc2 and temperature T is different from the usual scaling relation found in cuprates and in other kinds of superconductors. Small positive magneto-resistance is observed in Cu0.3Bi2Se3 superconductors up to room temperature. As a result, these observations provide useful information for further study of this possible candidate for topological superconductors.« less

  7. Corporate social responsibility (CSR) : responsibility or Innovation? : an analysis of the feedback between CSR activities and the expectations placed upon corporations

    E-Print Network [OSTI]

    Rodriguez, Adrian Xavier

    2010-01-01

    This thesis uses case study and interview data to present a framework for analyzing corporate behavior in order to define corporate social responsibility (CSR). It answers the question: Can corporations tie corporate social ...

  8. Occidental Chemical Corporation Alters the Geismar EDC Unit and Reduces Energy Usage by 50% 

    E-Print Network [OSTI]

    Truver, A.; Fink, L.

    2015-01-01

    Harry Anderson & Jim Strathe Occidental Chemical Corporation Geismar Plant June 3, 2015 ESL-IE-15-06-02 Proceedings of the Thrity-Seventh Industrial Energy Technology Conference New Orleans, LA. June 2-4, 2015 • OxyChem – The Company • Geismar Facility... - Overview • Project Background and Scope • Project Results Presentation Overview 2 ESL-IE-15-06-02 Proceedings of the Thrity-Seventh Industrial Energy Technology Conference New Orleans, LA. June 2-4, 2015 • A leading North American manufacturer of chlorine...

  9. Melt-spin processing of high {Tc} oxide superconductors

    SciTech Connect (OSTI)

    Folkerts, T.J.; Wu, Hengning; Yoo, S.I.; Merkle, B.D.; Arrasmith, S.R.; Dennis, K.W.; Kramer, M.J.; McCallum, R.W.

    1993-10-01

    Containerless techniques offer distinct advantages for the melt processing of oxide superconductors. The majority of these materials form liquids which are highly reactive with standard crucible materials such as Al{sub 2}O{sub 3} and Pt, resulting in non-negligible contamination. We have developed a containerless melt-spin processing technique where in 50--400 {mu}m particles of REBa{sub 2}Cu{sub 3}O{sub 7-x} high temperature oxide superconductors are melted in free fall through a vertical tube furnace and quenched onto a copper wheel. Previously this method has been successful in producing glasses of NdBa{sub 2}Cu{sub 3}O{sub 7-x} and GdBa{sub 2}Cu{sub 3}O{sub 7-x}. In this report we discuss the results for both stoichiometric and non-stoichiometric YBa{sub 2}Cu{sub 3}O{sub 7-x} (Y123). Thermal, microstructural, and superconducting characterization of both the as-quenched and the annealed materials will be presented.

  10. Low energy properties of color-flavor locked superconductors

    E-Print Network [OSTI]

    Cristina Manuel

    2005-12-05

    We discuss some low energy properties of color-flavor locked (CFL) superconductors. First, we study how an external magnetic field affects their Goldstone physics in the chiral limit, stressing that there is a long-range component of the field that penetrates the superconductor. We note that the most remarkable effect of the applied field is giving a mass to the charged pions and kaons. By estimating this effect, we see that for values $e B \\sim 2 f_\\pi \\Delta$, where $\\Delta$ is the quark gap, and $f_\\pi$ the pion decay constant, the charged Goldstone bosons become so heavy, that they turn out to be unstable. The symmetry breaking pattern is then changed, agreeing with that of the magnetic color-flavor locked (MCFL) phase, recently proposed in hep-ph/0503162. Finally, we discuss the physics of the superfluid phonon of the CFL phase, compare it with that of the phonon of a Bose-Einstein condensate, and discuss transport phenomena at low temperature. Astrophysical implications of all the above low energy properties are also commented.

  11. Spin Josephson effect in topological superconductor-ferromagnet junction

    SciTech Connect (OSTI)

    Ren, C. D.; Wang, J.

    2014-03-21

    The composite topological superconductor (TS), made of one-dimensional spin-orbit coupled nanowire with proximity-induced s-wave superconductivity, is not a pure p-wave superconductor but still has a suppressed s-wave pairing. We propose to probe the spin texture of the p-wave pairing in this composite TS by examining possible spin supercurrents in an unbiased TS/ferromagnet junction. It is found that both the exchange-coupling induced and spin-flip reflection induced spin currents exist in the setup and survive even in the topological phase. We showed that besides the nontrivial p-wave pairing state accounting for Majorana Fermions, there shall be a trivial p-wave pairing state that contributes to spin supercurrent. The trivial p-wave pairing state is diagnosed from the mixing effect between the suppressed s-wave pairing and the topologically nontrivial p-wave pairing. The d vector of the TS is proved not to be rigorously perpendicular to the spin projection of p-wave pairings. Our findings are also confirmed by the Kitaev's p-wave model with a nonzero s-wave pairing.

  12. Permanent magnet with MgB{sub 2} bulk superconductor

    SciTech Connect (OSTI)

    Yamamoto, Akiyasu, E-mail: yamamoto@appchem.t.u-tokyo.ac.jp [The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656 (Japan); JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan); Ishihara, Atsushi; Tomita, Masaru [Railway Technical Research Institute, 2-8-38 Hikari, Kokubunji, Tokyo 185-8540 (Japan); Kishio, Kohji [The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656 (Japan)

    2014-07-21

    Superconductors with persistent zero-resistance currents serve as permanent magnets for high-field applications requiring a strong and stable magnetic field, such as magnetic resonance imaging. The recent global helium shortage has quickened research into high-temperature superconductors (HTSs)—materials that can be used without conventional liquid-helium cooling to 4.2?K. Herein, we demonstrate that 40-K-class metallic HTS magnesium diboride (MgB{sub 2}) makes an excellent permanent bulk magnet, maintaining 3?T at 20?K for 1 week with an extremely high stability (<0.1 ppm/h). The magnetic field trapped in this magnet is uniformly distributed, as for single-crystalline neodymium-iron-boron. Magnetic hysteresis loop of the MgB{sub 2} permanent bulk magnet was determined. Because MgB{sub 2} is a simple-binary-line compound that does not contain rare-earth metals, polycrystalline bulk material can be industrially fabricated at low cost and with high yield to serve as strong magnets that are compatible with conventional compact cryocoolers, making MgB{sub 2} bulks promising for the next generation of Tesla-class permanent-magnet applications.

  13. Susceptibility and Knight-shift anomalies in cuprate superconductors

    SciTech Connect (OSTI)

    Thoma, J.; Tewari, S.; Ruvalds, J.; Rieck, C.T.

    1995-06-01

    The unconventional temperature variation of the static susceptibility {chi}({ital T}) that has been discovered in various copper oxide superconductors is explained in terms of a model density of states that has a step shape at an energy threshold {ital E}{sub 0} along with a logarithmic Van Hove singularity at the same {ital E}{sub 0}. Calculations of {chi}({ital T}) and the Knight shift above the superconducting transition temperature {ital T}{sub {ital c}} yield good fits to the YBCO, BSCCO, and LSCO data by adjusting only the Fermi energy {mu} in correspondence to the oxygen or Sr content, respectively. When {mu} is right on or slightly below the Van Hove singularity, an upturn in {chi} occurs as the temperature {ital T} is lowered. By contrast, when {mu} is slightly above the threshold energy {ital E}{sub 0}, a downturn in {chi} is achieved as {ital T} is lowered. A correlation of these phenomena with experimental data provides insight into the proximity of the Van Hove singularity to {mu} in several cuprate superconductors. The YBCO and TBCO cuprates with the higher {ital T}{sub {ital c}} values exhibit a nearly constant susceptibility that suggests a Fermi energy well removed from the Van Hove singularity. The sensitivity of {ital T}{sub {ital c}} as well as the susceptibility to chemical changes may provide tests of electronic mechanisms of electron pairing as well as the BCS theory.

  14. Synthesis of highly phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor

    DOE Patents [OSTI]

    Dorris, S.E.; Poeppel, R.B.; Prorok, B.C.; Lanagan, M.T.; Maroni, V.A.

    1994-10-11

    An article and method of manufacture of (Bi,Pb)-Sr-Ca-Cu-O superconductor are disclosed. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi,Pb)-Sr-Ca-Cu-O superconductor. 5 figs.

  15. Synthesis of highly phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor

    DOE Patents [OSTI]

    Dorris, Stephen E. (La Grange Park, IL); Poeppel, Roger B. (Glen Ellyn, IL); Prorok, Barton C. (Harrisville, PA); Lanagan, Michael T. (Woodridge, IL); Maroni, Victor A. (Naperville, IL)

    1994-01-01

    An article and method of manufacture of (Bi,Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi,Pb)-Sr-Ca-Cu-O superconductor.

  16. Social Impact Management Plans: Innovation in corporate and public policy

    SciTech Connect (OSTI)

    Franks, Daniel M.; Vanclay, Frank

    2013-11-15

    Social Impact Assessment (SIA) has traditionally been practiced as a predictive study for the regulatory approval of major projects, however, in recent years the drivers and domain of focus for SIA have shifted. This paper details the emergence of Social Impact Management Plans (SIMPs) and undertakes an analysis of innovations in corporate and public policy that have put in place ongoing processes – assessment, management and monitoring – to better identify the nature and scope of the social impacts that might occur during implementation and to proactively respond to change across the lifecycle of developments. Four leading practice examples are analyzed. The International Finance Corporation (IFC) Performance Standards require the preparation of Environmental and Social Management Plans for all projects financed by the IFC identified as having significant environmental and social risks. Anglo American, a major resources company, has introduced a Socio-Economic Assessment Toolbox, which requires mine sites to undertake regular assessments and link these assessments with their internal management systems, monitoring activities and a Social Management Plan. In South Africa, Social and Labour Plans are submitted with an application for a mining or production right. In Queensland, Australia, Social Impact Management Plans were developed as part of an Environmental Impact Statement, which included assessment of social impacts. Collectively these initiatives, and others, are a practical realization of theoretical conceptions of SIA that include management and monitoring as core components of SIA. The paper concludes with an analysis of the implications for the practice of impact assessment including a summary of key criteria for the design and implementation of effective SIMPs. -- Highlights: • Social impact management plans are effective strategies to manage social issues. • They are developed in partnership with regulatory agencies, investors and community. • SIMPs link assessment to ongoing management and address social and community issues. • SIMPs clarify responsibilities in the management of impacts, opportunities and risks. • SIMPs demonstrate a shift to include management as a core component of SIA practice.

  17. Honda: North American Manufacturing Facilities | Department of...

    Office of Environmental Management (EM)

    Honda: North American Manufacturing Facilities Honda: North American Manufacturing Facilities From October, 2008 Honda: North American Manufacturing Facilities More Documents &...

  18. AC losses in type-II superconductors induced by nonuniform fluctuations of external magnetic field

    E-Print Network [OSTI]

    as the economic gains of implementation of type-II superconductors in power transmission lines, current leads amplitude. The results can be used to estimate the AC losses in flywheels, electric motors, magnetic shields

  19. Irradiation of insulators for Workshop on Accelerator Magnet, Superconductor, Design and Optimization

    E-Print Network [OSTI]

    McDonald, Kirk

    Irradiation of insulators for EuCARD Workshop on Accelerator Magnet, Superconductor, Design #12;Outline WAMSDO ­ 14.11.2011 CERN · Motivation of launching EUCARD irradiation task · Irradiation methodology · Post irradiation tests ­ Electrical ­ Thermal ­ Mechanical · Irradiation cryostat · Conclusions

  20. An experimental device for critical surface characterization of YBCO tape superconductors

    E-Print Network [OSTI]

    Mangiarotti, Franco Julio

    2013-01-01

    The twisting stacked tape cabling (TSTC) method for YBCO superconductors is very attractive for high current density, high magnetic field applications, such as nuclear fusion reactors and high energy physics experiments. ...

  1. A15 SUPERCONDUCTORS THROUGH DIRECT ""SOLID-STATE"" PRECIPITATION: V3Ga AND N63AI

    E-Print Network [OSTI]

    Hong, Minghwei

    2010-01-01

    and Metallurgy of Superconductors, pp. 147-153. J . H. N.1972). B. T. Matthias, Superconductivity i n d- and f-BandP. G. de Gennes, Superconductivity, edited by R. D. Parks, v

  2. Angular dependence of the B-driven superconductor-insulator transition

    E-Print Network [OSTI]

    Fominov, Yakov

    , 2006Chernogolovka, 2006 #12;Disordered superconductors M. Strongin, et. al., Phys. Rev. B1, 1078 (1970 #12;Two components R()=Riso+Raniso[sin()] Riso=R|| (spin?...) ·Raniso=R-R|| (orbital?...) 1.0 0.8 0

  3. FFLO strange metal and quantum criticality in two dimensions: theory and experimental evidence in organic superconductors

    E-Print Network [OSTI]

    Piazza, Francesco; Strack, Philipp

    2015-01-01

    All superconductors known so far exhibit pairing of electrons into a state with vanishing total momentum. In the presence of a finite difference in the population of electrons with opposite spin it is possible, however, that pairs with finite momentum condense in the ground state. The associated periodic modulation of the superconducting order parameter has not been observed to date; but there is indirect experimental evidence for such an exotic type of pairing in 2D organic superconductors. Here, we show that the normal state above a 2D superconductor with finite momentum pairs exhibits a new strange metal phase at low temperatures. It has no proper electronic quasiparticles over parts of the Fermi surface and leads to anomalies both in thermodynamics and response functions. In particular, the specific heat and NMR-relaxation rate exhibit nontrivial power laws at low temperature, consistent with experimental data on 2D organic superconductors.

  4. Universal transport signatures of Majorana fermions in superconductor-Luttinger liquid junctions

    E-Print Network [OSTI]

    Universal transport signatures of Majorana fermions in superconductor-Luttinger liquid junctions, University of California, Irvine, CA 92697 3 Institute of Quantum Information, California Institute of Technology, Pasadena, CA 91125 4 Department of Physics, California Institute of Technology, Pasadena, CA

  5. Thermal contact conductance of metallic coated superconductor/copper interfaces at cryogenic temperatures 

    E-Print Network [OSTI]

    Ochterbeck, Jay Matthew

    1990-01-01

    THERMAL CONTACT CONDUCTANCE OF METALLIC COATED SUPERCONDUCTOR/COPPER INTERFACES AT CRYOGENIC TEMPERATURES A Thesis by JAY MATTHEW OCHTERBECK Submitted to the 0%ce of Graduate Studies of Texas AJrM IJniversity in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 1990 Major Subject: Mechanical Engineering THERMAL CONTACT CONDUCTANCE OF METALLIC COATED SUPERCONDUCTOR/COPPER INTERFACES AT CRYOGENIC TEMPERATURES A Thesis JA'r '(IATTHEW OCHTERBECK Approved...

  6. Holographic Superconductors with Ho?ava-Lifshitz Black Holes

    E-Print Network [OSTI]

    Rong-Gen Cai; Hai-Qing Zhang

    2009-12-03

    We discuss the phase transition of planar black holes in Ho\\v{r}ava-Lifshitz gravity by introducing a Maxwell field and a complex scalar field. We calculate the condensates of the charged operators in the dual CFTs when the mass square of the complex scalar filed is $m^2=-2/L^2$ and $m^2=0$, respectively. We compute the electrical conductivity of the \\hl superconductor in the probe approximation. In particular, it is found that there exists a spike in the conductivity for the case of the operator with scaling dimension one. These results are quite similar to those in the case of Schwarzschild-AdS black holes, which demonstrates that the holographic superconductivity is a robust phenomenon associated with asymptotic AdS black holes.

  7. Method of producing improved microstructure and properties for ceramic superconductors

    DOE Patents [OSTI]

    Singh, J.P.; Guttschow, R.A.; Dusek, J.T.; Poeppel, R.B.

    1996-06-11

    A ceramic superconductor is produced by close control of oxygen partial pressure during sintering of the material. The resulting microstructure of YBa{sub 2}Cu{sub 3}O{sub x} indicates that sintering kinetics are enhanced at reduced p(O{sub 2}). The density of specimens sintered at 910 C increased from 79 to 94% theoretical when p(O{sub 2}) was decreased from 0.1 to 0.0001 MPa. The increase in density with decrease in p(O{sub 2}) derives from enhanced sintering kinetics, due to increased defect concentration and decreased activation energy of the rate-controlling species undergoing diffusion. Sintering at 910 C resulted in a fine-grain microstructure, with an average grain size of approximately 4 {micro}m. Such a microstructure results in reduced microcracking, strengths as high as 191 MPa and high critical current density capacity. 20 figs.

  8. Method of producing improved microstructure and properties for ceramic superconductors

    DOE Patents [OSTI]

    Singh, Jitendra P. (Naperville, IL); Guttschow, Rob A. (Bloomington, IL); Dusek, Joseph T. (Lombard, IL); Poeppel, Roger B. (Glen Ellyn, IL)

    1996-01-01

    A ceramic superconductor is produced by close control of oxygen partial pressure during sintering of the material. The resulting microstructure of YBa.sub.2 Cu.sub.3 O.sub.x indicates that sintering kinetics are enhanced at reduced p(O.sub.2). The density of specimens sintered at 910.degree. C. increased from 79 to 94% theoretical when p(O.sub.2) was decreased from 0.1 to 0.0001 MPa. The increase in density with decrease in p(O.sub.2) derives from enhanced sintering kinetics, due to increased defect concentration and decreased activation energy of the rate-controlling species undergoing diffusion. Sintering at 910.degree. C. resulted in a fine-grain microstructure, with an average grain size of approximately 4 .mu.m. Such a microstructure results in reduced microcracking, strengths as high as 191 MPa and high critical current density capacity.

  9. The gravity dual of a p-wave superconductor

    E-Print Network [OSTI]

    Steven S. Gubser; Silviu S. Pufu

    2008-08-28

    We construct black hole solutions to the Yang-Mills equations in an AdS_4-Schwarzschild background which exhibit superconductivity. What makes these backgrounds p-wave superconductors is that the order parameter is a vector, and the conductivities are strongly anisotropic in a manner that is suggestive of a gap with nodes. The low-lying excitations of the normal state have a relaxation time which grows rapidly as the temperature decreases, consistent with the absence of impurity scattering. A numerical exploration of quasinormal modes close to the transition temperature suggests that p-wave backgrounds are stable against perturbations analogous to turning on a p+ip gap, whereas p+ip-wave configurations are unstable against turning into pure p-wave backgrounds.

  10. Mechanics of Individual, Isolated Vortices in a Cuprate Superconductor

    E-Print Network [OSTI]

    Ophir M. Auslaender; Lan Luan; Eric W. J. Straver; Jennifer E. Hoffman; Nicholas C. Koshnick; Eli Zeldov; Douglas A. Bonn; Ruixing Liang; Walter N. Hardy; Kathryn A. Moler

    2008-09-16

    Superconductors often contain quantized microscopic whirlpools of electrons, called vortices, that can be modeled as one-dimensional elastic objects. Vortices are a diverse playground for condensed matter because of the interplay between thermal fluctuations, vortex-vortex interactions, and the interaction of the vortex core with the three-dimensional disorder landscape. While vortex matter has been studied extensively, the static and dynamic properties of an individual vortex have not. Here we employ magnetic force microscopy (MFM) to image and manipulate individual vortices in detwinned, single crystal YBa2Cu3O6.991 (YBCO), directly measuring the interaction of a moving vortex with the local disorder potential. We find an unexpected and dramatic enhancement of the response of a vortex to pulling when we wiggle it transversely. In addition, we find enhanced vortex pinning anisotropy that suggests clustering of oxygen vacancies in our sample and demonstrates the power of MFM to probe vortex structure and microscopic defects that cause pinning.

  11. Theory of intertwined orders in high temperature superconductors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fradkin, Eduardo; Tranquada, John M.; Kivelson, Steven A.

    2015-03-26

    The electronic phase diagrams of many highly correlated systems, and in particular the cuprate high temperature superconductors, are complex, with many different phases appearing with similar—sometimes identical—ordering temperatures even as material properties, such as a dopant concentration, are varied over wide ranges. This complexity is sometimes referred to as “competing orders.” However, since the relation is intimate, and can even lead to the existence of new phases of matter such as the putative “pair-density-wave,” the general relation is better thought of in terms of “intertwined orders.” We selectively analyze some of the experiments in the cuprates which suggest that essentialmore »aspects of the physics are reflected in the intertwining of multiple orders—not just in the nature of each order by itself. We also summarize and critique several theoretical ideas concerning the origin and implications of this complexity.« less

  12. Theory of intertwined orders in high temperature superconductors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fradkin, Eduardo [Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States); Tranquada, John M. [Brookhaven National Lab. (BNL), Upton, NY (United States); Kivelson, Steven A. [Stanford Univ., Stanford, CA (United States)

    2015-05-01

    The electronic phase diagrams of many highly correlated systems, and in particular the cuprate high temperature superconductors, are complex, with many different phases appearing with similar—sometimes identical—ordering temperatures even as material properties, such as a dopant concentration, are varied over wide ranges. This complexity is sometimes referred to as “competing orders.” However, since the relation is intimate, and can even lead to the existence of new phases of matter such as the putative “pair-density-wave,” the general relation is better thought of in terms of “intertwined orders.” We selectively analyze some of the experiments in the cuprates which suggest that essential aspects of the physics are reflected in the intertwining of multiple orders—not just in the nature of each order by itself. We also summarize and critique several theoretical ideas concerning the origin and implications of this complexity.

  13. Holographic metal/superconductor phase transitions with dark matter sector

    E-Print Network [OSTI]

    Peng, Yan

    2015-01-01

    In this paper, we investigate the holographic phase transitions with dark matter sector in the AdS black hole background away from the probe limit. We firstly detect the formation of the scalar hair by examining the behaviors of the superconducting solutions and the effective mass of the scalar field. Then we study the condensation of the scalar operator with respect to the Hawking temperature T. As a further step, we disclose the properties of the phase transitions from the holographic topological entanglement entropy of the system. The holographic topological entanglement entropy is proved to be very useful in characterizing the difference between various phases. At last, we also derive the qualitative properties through the analytical methods. In summary, we find that the model parameters can provide rich physics in the general holographic metal/superconductor phase transitions.

  14. High field superconductor development and understanding project, Final Report

    SciTech Connect (OSTI)

    Larbalestier, David C.; Lee, Peter J.

    2009-07-15

    Over 25 years the Applied Superconductivity Center at the University of Wisconsin-Madison provided a vital technical resource to the High Energy Physics community covering development in superconducting strand for HEP accelerator magnet development. In particular the work of the group has been to develop the next generation of high field superconductors for high field application. Grad students Mike Naus, Chad Fischer, Arno Godeke and Matt Jewell improved our understanding of the microstructure and microchemistry of Nb3Sn and their impact on the physical and mechanical properties. The success of this work has led to the continued funding of this work at the ASC after it moved to the NHMFL and also to direct funding from BNL for some aspects of Nb3Sn cable evaluation.

  15. Studies of nonlinear electrodynamics of high-temperature superconductors

    SciTech Connect (OSTI)

    Lam, Quan-Chiu H.

    1991-08-01

    Nonlinear electrodynamics of high-{Tc} superconductors are studied both theoretically and experimentally. For powdered samples, a novel model is presented in which the metallographically observed superconducting grains in the powder are modeled as superconducting current loops of various areas with weak links. Surprising harmonic generation behavior in an arc field, H{sub 1} cos({omega}t), is predicted by the model; the power at high harmonics show sharp dips almost periodic in a superposing dc magnetic field, revealing flux quantization in the prototype loops in the model. Such oscillation of the harmonic power in dc magnetic field P{sub nf}(H{sub dc}), is indeed experimentally observed in powdered YBa{sub 2}Cu{sub 3}O{sub 7}. Other experimental aspects also agree with model predictions. For bulk sintered cylindrical samples, a generalized critical state model is presented. In this model, the nonlinear electrodynamics are due to flux-pinning, somewhat similar to low-temperature type-II superconductors, but with a more generalized critical current densities' dependence on magnetic field -- J{sub c}(H){approximately}H{sub local}{sup -{beta}}, with {beta} being an adjustable parameter. Experiments in ac and dc magnetic fields on a sintered cylindrical rod of YBa{sub 2}Cu{sub 3}O{sub 7} yield unambiguous evidence of independent inter- and intragranular contributions to the complex harmonic permeability {tilde {mu}}{sub n} = {mu}{prime}{sub n} -i{mu}{double prime}{sub n}. Temperature- dependence measurements reveal that, while the intragranular supercurrents disappear at {Tc}{ge}91.2 K, the intergranular supercurrents disappear at T{ge}86.6 K. This result is, to our knowledge, the first clear measurement of the phase-locking temperature of the 3-D matrix formed by YBa{sub 2}Cu{sub 3}O{sub 7} grains, which are in electrical contact with one another through weak links.

  16. Studies of nonlinear electrodynamics of high-temperature superconductors

    SciTech Connect (OSTI)

    Lam, Quan-Chiu H.

    1991-08-01

    Nonlinear electrodynamics of high-{Tc} superconductors are studied both theoretically and experimentally. For powdered samples, a novel model is presented in which the metallographically observed superconducting grains in the powder are modeled as superconducting current loops of various areas with weak links. Surprising harmonic generation behavior in an arc field, H{sub 1} cos({omega}t), is predicted by the model; the power at high harmonics show sharp dips almost periodic in a superposing dc magnetic field, revealing flux quantization in the prototype loops in the model. Such oscillation of the harmonic power in dc magnetic field P{sub nf}(H{sub dc}), is indeed experimentally observed in powdered YBa{sub 2}Cu{sub 3}O{sub 7}. Other experimental aspects also agree with model predictions. For bulk sintered cylindrical samples, a generalized critical state model is presented. In this model, the nonlinear electrodynamics are due to flux-pinning, somewhat similar to low-temperature type-II superconductors, but with a more generalized critical current densities` dependence on magnetic field -- J{sub c}(H){approximately}H{sub local}{sup -{beta}}, with {beta} being an adjustable parameter. Experiments in ac and dc magnetic fields on a sintered cylindrical rod of YBa{sub 2}Cu{sub 3}O{sub 7} yield unambiguous evidence of independent inter- and intragranular contributions to the complex harmonic permeability {tilde {mu}}{sub n} = {mu}{prime}{sub n} -i{mu}{double_prime}{sub n}. Temperature- dependence measurements reveal that, while the intragranular supercurrents disappear at {Tc}{ge}91.2 K, the intergranular supercurrents disappear at T{ge}86.6 K. This result is, to our knowledge, the first clear measurement of the phase-locking temperature of the 3-D matrix formed by YBa{sub 2}Cu{sub 3}O{sub 7} grains, which are in electrical contact with one another through weak links.

  17. EnerVault Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville, New York:CorporationEnerGeneticsEnerVault Corporation

  18. Corporate Energy Management: A Survey of Large Manufacturing Companies 

    E-Print Network [OSTI]

    Norland, D. L.; Lind, L.

    2000-01-01

    Corporate practices regarding energy management vary substantially from one company to another. Some companies pay close attention to energy use throughout the corporation while others pay scant attention. This paper first describes what we call...

  19. Corporate Entrepreneurship programs : practices and their implications in developing economies

    E-Print Network [OSTI]

    Teran, Marco (Marco A. Teran Aguilar)

    2012-01-01

    Corporate Entrepreneurship is driven by external demands and internal leadership. However, this process is difficult to implement in firms because it often conflicts with the core of corporate activities and the accumulated ...

  20. Copyright 2011 Northrop Grumman Corporation Northrop Grumman Information Systems (NGIS)

    E-Print Network [OSTI]

    from unattended sensors · Space vulnerabilities and survivability · Cyber security/informationCopyright © 2011 Northrop Grumman Corporation Northrop Grumman Information Systems (NGIS Northrop Grumman Corporation Page 2 1. Overview Information Sponsor ­Northrop Grumman Information Systems

  1. THE INTERFACE BETWEEN ENVIRONMENTAL ASSESSMENT AND CORPORATE RESPONSIBILITY: THE

    E-Print Network [OSTI]

    THE INTERFACE BETWEEN ENVIRONMENTAL ASSESSMENT AND CORPORATE RESPONSIBILITY: THE VICTOR DIAMOND Report No: 436 Title of Research Project: The Interface Between Environmental Assessment and Corporate: ___________________________________________ #12;iii ABSTRACT The environmental assessment and sustainable development literature recognizes

  2. 2011 Corporate Headquarters: An Analysis of Immediate Communities 

    E-Print Network [OSTI]

    Conti, Serena Nicole

    2013-04-25

    While the Bay Area’s history has shaped today’s culture, there is little written about how corporations affect their immediate communities. This thesis focuses on the largest corporations in the Bay Area to determine if ...

  3. Aging in American Convents

    E-Print Network [OSTI]

    Corwin, Anna I.

    2009-01-01

    Schuster. Snowdon, David 2001 Aging with Grace: What the Nunreligion, devotion, and aging. CSW JAN09 update tocAging in American Convents FIELDWORK REPORT by Anna I.

  4. Precedents in African American architecture

    E-Print Network [OSTI]

    Sass, Lawrence

    1994-01-01

    As a sub-sets of American culture, African Americans have not been able to offer culturally specific architectural elements to the design process because the history of African American form and space has not been recognized ...

  5. American Institute of Aeronautics Astronautics

    E-Print Network [OSTI]

    American Institute of Aeronautics Astronautics Study Cylindrical Thruster Low Power Space scaling of magnetic circuit leaves almost no magnetic Copyright American Institute Aeronautics; American Institute of Aeronautics Astronautics ability coaxial thrusters achieve performance moderate power

  6. Comprehensive Renewable Energy Feasibility Study for Sealaska Corporation

    SciTech Connect (OSTI)

    Robert Lynette; John Wade: Larry Coupe

    2006-06-30

    The purposes of this project were: (1) to conduct a comprehensive feasibility study to determine the potential sustainability of wind and/or small hydroelectric power plants on Southeast Alaska native village lands, and (2) to provide the villages with an understanding of the requirements, costs, and benefits of developing and operating wind or small hydroelectric power plants. The program was sponsored by the Tribal Energy program, Office of Energy Efficiency and Renewable Energy, US Department of Energy. The Contractor was Sealaska Corporation, the Regional Native Corporation for Southeast Alaska that includes 12 village/urban corporations. Most villages are isolated from any central electric transmission and use diesel-electric systems for power generation, making them prime candidates for deploying renewable energy sources. Wind Energy - A database was assembled for all of the candidate sites in SE Alaska, including location, demographics, electricity supply and demand, existing and planned transmission interties with central generation, topographical maps, macro wind data, and contact personnel. Field trips were conducted at the five candidate villages that were deemed most likely to have viable wind resources. Meetings were held with local village and utility leaders and the requirements, costs, and benefits of having local renewable energy facilities were discussed. Two sites were selected for anemometry based on their needs and the probability of having viable wind resources – Yakutat and Hoonah. Anemometry was installed at both sites and at least one year of wind resource data was collected from the sites. This data was compared to long-term data from the closest weather stations. Reports were prepared by meteorologist John Wade that contains the details of the measured wind resources and energy production projections. Preliminary financial analysis of hypothetical wind power stations were prepared to gauge the economic viability of installing such facilities at each site. The average wind resources measured at Yakutat at three sites were very marginal, with an annual average of 4.0 mps (9 mph) at 60 meters above ground level. At Hoonah, the average wind resources measured on the 1,417 ft elevation ridge above the village were very low, with a six-month average of 3.9 mps (8.7 mph) at 60 meters above ground level. The wind resources at both sites were not sufficient to justify installation of wind turbines. In summary, although there are several known windy spots in SE Alaska (e.g., Skagway), we were not able to identify any isolated Native American villages that utilize diesel-electric power generation that have commercially viable wind resources. Small Hydroelectric - The study focused on the communities associated with Sealaska Corporation that use diesel-electric for electricity and have a potential for hydroelectric power generation. Most of them have had at least an assessment of hydroelectric potential, and a few have had feasibility studies of potential hydroelectric projects. Although none of the sites examined are financially viable without substantial grant funding, Hoonah, Kake, and Yakutat appear to have the best potential for new hydro facilities.

  7. May 21, 2004 2004 IBM Corporation Panel Discussion WWW 2004

    E-Print Network [OSTI]

    May 21, 2004 © 2004 IBM Corporation Panel Discussion WWW 2004 Kamal Bhattacharya IBM T. J. Watson Research Center Yorktown Heights, NY 10598 kamalb@us.ibm.com #12;© 2004 IBM Corporation Some Observations as low a possible #12;© 2004 IBM Corporation Some Observations (cont.) § The business owners define

  8. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion IntelCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECfp

  9. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion IntelCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo SPEC CINT2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la

  10. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion IntelCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECfp2006

  11. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECint2006://www.spec.org/ Page 2 SPEC CINT2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias

  12. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECfp2006 = Not Run SPECfp

  13. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion IntelCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion

  14. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECfp2006://www.spec.org/ Page 3 SPEC CFP2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de

  15. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECint2006 = Not Run SPECint_base2006://www.spec.org/ Page 2 SPEC CINT2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias

  16. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECfp2006

  17. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECint2006 = Not Run SPECint SPEC CINT2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la

  18. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECint2006 = Not Run SPECint://www.spec.org/ Page 2 SPEC CINT2006 ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias

  19. Standard Performance Evaluation Corporation info@spec.org

    E-Print Network [OSTI]

    Llanos, Diego R.

    ResultCopyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo 6300 SPECint2006 = Not Run SPECint_base2006Copyright 2006 Standard Performance Evaluation Corporation Sti Tecnologias de la Informacion Intel Core 2 Duo

  20. Corporate social responsibility and its impact on the corporate decision-making process for university undergraduate research fellows 

    E-Print Network [OSTI]

    Bain, Joseph E

    2013-02-22

    This study seeks to answer the question, "How does corporate social responsibility (CSR) influence corporate decision making?" It does so in two steps. The first step is the building of a theoretical framework in order ...

  1. Of Enterprise Principles & Corporate Groups: Does Corporate Law Reach Human Rights?

    E-Print Network [OSTI]

    Harper Ho, Virginia E.

    2013-03-01

    In recent years, a number of international and cross-sectoral initiatives have attempted to respond to the human rights impacts of corporations. Foremost among these is the United Nations’ 2008 “Protect, Respect, and Remedy” ...

  2. Hindawi Publishing Corporation Comparative and Functional Genomics

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    Hindawi Publishing Corporation Comparative and Functional Genomics Volume 2007, Article ID 47304, 7 pages doi:10.1155/2007/47304 Meeting Report eGenomics: Cataloguing Our Complete Genome Collection III, Michigan State University, East Lansing, MI 48824, USA 3 The Institute for Genomic Research, 9712 Medical

  3. Corporate Venture Capital (CVC) Seeking Innovation and

    E-Print Network [OSTI]

    Corporate Venture Capital (CVC) Seeking Innovation and Strategic Growth Recent patterns in CVCRoberts, Professor of Management of Technology, Sloan School of Management, Massachusetts Institute of Technology ValLivada, Research Fellow, Sloan School of Management, Massachusetts Institute of Technology AndrewWang, Economist

  4. Hindawi Publishing Corporation Journal of Nanotechnology

    E-Print Network [OSTI]

    Wang, Yan Alexander

    Hindawi Publishing Corporation Journal of Nanotechnology Volume 2010, Article ID 801789, 42 pages a general interest in both fundamental and practical nanotechnology. Over the past 20 years, research's -orbital axis vector (POAV) #12;2 Journal of Nanotechnology (0,0) (1,0) (2,0) (3,0) (4,0) (5,0) (1,1) (2

  5. Structural Models and Endogeneity in Corporate Finance: The Link Between Managerial Ownership and Corporate Performance

    E-Print Network [OSTI]

    Coles, Jeffrey L.; Lemmon, Michael L.; Meschke, Felix

    2012-01-01

    Jeffrey L. Coles Arizona State University (ASU) - Finance Department Michael L. Lemmon University of Utah - Department of Finance Felix Meschke University of Kansas - Finance Area This version: April 14, 2011 Paper citation: Jeffrey L.... Coles, Michael L. Lemmon, J. Felix Meschke, Structural models and endogeneity in corporate finance: The link between managerial ownership and corporate performance, Journal of Financial Economics, Volume 103, Issue 1, January 2012, Pages 149-168, ISSN...

  6. Americans Abroad: A Global Diaspora?

    E-Print Network [OSTI]

    Croucher, Sheila

    2012-01-01

    D. “Confederate Migration to Mexico. ” Hispanic AmericanHarmon, “Confederate Migration to Mexico,” Hispanic AmericanUS Retirement Migration to Mexico and Panama. Washington,

  7. Corporate icons in the suburban landscape

    E-Print Network [OSTI]

    Abolina, Viktorija

    2013-01-01

    The image of the modern workplace in the American suburb has long been a contentious topic of discussion among academics, planning and development professionals, and the public. Today, the critics of office parks in the ...

  8. Local tunneling characteristics near a grain boundary of a d-wave superconductor as probed by a normal-metal or a low-Tc-superconductor STM tip 

    E-Print Network [OSTI]

    Zhao, Hongwei

    2005-08-29

    We studied the local single-particle tunneling characteristics [as observed with scanning tunnel microscopy (STM)] for N D and S D tunneling, where N is a normal metal, S is a s-wave superconductor, and D is a d-wave ...

  9. Campbell penetration depth in Fe-based superconductors

    SciTech Connect (OSTI)

    Prommapan, Plegchart

    2011-08-15

    A 'true' critical current density, j{sub c}, as opposite to commonly measured relaxed persistent (Bean) current, j{sub B}, was extracted from the Campbell penetration depth, {lambda}{sub c}(T,H) measured in single crystals of LiFeAs, and optimally electron-doped Ba(Fe{sub 0.954}Ni{sub 0.046}){sub 2}As{sub 2} (FeNi122). In LiFeAs, the effective pinning potential is nonparabolic, which follows from the magnetic field - dependent Labusch parameter {alpha}. At the equilibrium (upon field - cooling), {alpha}(H) is non-monotonic, but it is monotonic at a finite gradient of the vortex density. This behavior leads to a faster magnetic relaxation at the lower fields and provides a natural dynamic explanation for the fishtail (second peak) effect. We also find the evidence for strong pinning at the lower fields.The inferred field dependence of the pinning potential is consistent with the evolution from strong pinning, through collective pinning, and eventually to a disordered vortex lattice. The value of j{sub c}(2 K) {approx_equal} 1.22 x 10{sup 6} A/cm{sup 2} provide an upper estimate of the current carrying capability of LiFeAs. Overall, vortex behavior of almost isotropic, fully-gapped LiFeAs is very similar to highly anisotropic d-wave cuprate superconductors, the similarity that requires further studies in order to understand unconventional superconductivity in cuprates and pnictides. In addition to LiFeAs, we also report the magnetic penetration depth in BaFe{sub 2}As{sub 2} based superconductors including irradiation of FeNi122. In unirradiated FeNi122, the maximum critical current value is, j{sub c}(2K) {approx_equal} 3.3 x 10{sup 6} A/cm{sup 2}. The magnetic-dependent feature was observed near the transition temperature in FeTe{sub 0.53}Se{sub 0.47} and irradiated FeNi122. Because of this feature, further studies are required in order to properly calibrate the Campbell penetration depth. Finally, we detected the crossing between the magnetic penetration depth and London penetration depth in optimally hold-doped Ba{sub 0.6}K{sub 0.4}Fe{sub 2}As{sub 2} (BaK122) and isovalent doped BaFe{sub 2}(As{sub 0.7}P{sub 0.3}){sub 2} (BaP122). These phenomena probably coincide with anomalous Meissner effect reported in pnicitde superconductors [Prozorov et al. (2010b)] however more studies are needed in order to clarify this.

  10. ANISOTROPIC THERMAL CONDUCTIVITY IN A DIRTY TYPE II SUPERCONDUCTOR J.P.M. Van der Veeken, P.H. Kes and D. de Klerk

    E-Print Network [OSTI]

    Boyer, Edmond

    ANISOTROPIC THERMAL CONDUCTIVITY IN A DIRTY TYPE II SUPERCONDUCTOR J.P.M. Van der Veeken, P.H. Kes, The results are compared with calculations by Watts - Tobin and Imai. For dirty type II superconductors) of the total conductivities. ii) The theoretical calculations are valid only for BCS - superconductors

  11. Superconductor-insulator transition in two dimensions N. Markovic,* C. Christiansen, A. M. Mack, W. H. Huber, and A. M. Goldman

    E-Print Network [OSTI]

    Superconductor-insulator transition in two dimensions N. Markovic´,* C. Christiansen, A. M. Mack, W, Minnesota 55455 Received 8 March 1999 The superconductor-insulator transition of ultrathin films of bismuth of the superconductor-insulator transition, as well as the percolation models which predict finite dissipation at T 0. S

  12. Superconductors described with CSM.(a new paper, 2008-10-16)

    E-Print Network [OSTI]

    Tian De Cao

    2008-10-16

    The properties of the known superconductors can be explained with the correlations dominated superconducting mechanism (CSM). The correlations have the spin correlation, the charge correlation and the spin-charge correlation, and their strengths can be described by the related correlation lengths in their correlation functions. Our evaluation from many superconductors is that superconductivities occur if both the spin correlation and the charge correlation are stronger, and the calculation of a Hubbard model showed that the spin-charge correlation may govern superconductivities1. Afterwards, this mechanism has led a model which includes various superconductivities and magnetisms, and the relation between superconductivities and magnetisms can be understood on this model2 (these results have been shown by calculations). This mechanism is very practical, for example, to turn a material into a superconductor or increase the Tc of a superconductor, what we will do is to increase the spin-charge correlation. In this letter, we first describe the relations between the spin-charge correlation, the spin correlation and the charge correlation, take these relations as the basis of constructing a new phase diagram, and then classify the known superconductors into various sections in this phase diagram. This letter also gives a new explanation about the pressure effect on Tc, the isotope effect on Tc and the pairing symmetry with the CSM.

  13. Electronic states near a quantum fluctuating point vortex in a d-wave superconductor: Dirac fermion theory

    E-Print Network [OSTI]

    -point motion in a d-wave superconductor. The vortex is treated as a point flux tube, carrying fluxElectronic states near a quantum fluctuating point vortex in a d-wave superconductor: Dirac fermion model of the low-energy electronic states in the vicinity of a vortex undergoing quantum zero

  14. Model for the Magnetic Order and Pairing Channels in Fe Pnictide Superconductors M. Daghofer,1,2

    E-Print Network [OSTI]

    Tennessee, University of

    Model for the Magnetic Order and Pairing Channels in Fe Pnictide Superconductors M. Daghofer,1,2 A 2008; published 4 December 2008) A two-orbital model for Fe-pnictide superconductors is investigated of superconductiv- ity in the layered rare-earth oxypnictides compounds LnO1ÀxFxFeAs (Ln ¼ La, Pr, Ce, Sm) has

  15. Numerical solution of the time dependent Ginzburg-Landau equations for mixed (d + s)-wave superconductors

    SciTech Connect (OSTI)

    Gonçalves, W. C.; Sardella, E.; UNESP-Universidade Estadual Paulista, IPMet-Instituto de Pesquisas Meteorológicas, CEP 17048-699 Bauru, SP ; Becerra, V. F.; Miloševi?, M. V.; Peeters, F. M.; Departamento de Física, Universidade Federal do Ceará, 60455-900 Fortaleza, Ceará

    2014-04-15

    The time-dependent Ginzburg-Landau formalism for (d + s)-wave superconductors and their representation using auxiliary fields is investigated. By using the link variable method, we then develop suitable discretization of these equations. Numerical simulations are carried out for a mesoscopic superconductor in a homogeneous perpendicular magnetic field which revealed peculiar vortex states.

  16. Mechanics of Individual, Isolated Vortices in a Cuprate Superconductor

    SciTech Connect (OSTI)

    Auslaender, M.

    2010-05-25

    Superconductors often contain quantized microscopic whirlpools of electrons, called vortices, that can be modeled as one-dimensional elastic objects. Vortices are a diverse playground for condensed matter because of the interplay between thermal fluctuations, vortex-vortex interactions, and the interaction of the vortex core with the three-dimensional disorder landscape. While vortex matter has been studied extensively, the static and dynamic properties of an individual vortex have not. Here we employ magnetic force microscopy (MFM) to image and manipulate individual vortices in detwinned, single crystal YBa{sub 2}Cu{sub 3}O{sub 6.991} (YBCO), directly measuring the interaction of a moving vortex with the local disorder potential. We find an unexpected and dramatic enhancement of the response of a vortex to pulling when we wiggle it transversely. In addition, we find enhanced vortex pinning anisotropy that suggests clustering of oxygen vacancies in our sample and demonstrates the power of MFM to probe vortex structure and microscopic defects that cause pinning.

  17. A note on holographic superconductors with Weyl Corrections

    E-Print Network [OSTI]

    D. Momeni; M. R. Setare

    2011-10-28

    We study analytical properties of the holographic superconductors with Weyl corrections. We describe the phenomena in the probe limit neglecting backreaction of the space-time. We observe that for the conformal dimension $\\triangle_{+}=3$, the minimum value of the critical temperature $T^{Min}_c$ at which condensation sets, can be obtained directly from the equations of motion as $T^{Min}_c\\approx 0.170845\\sqrt[3]{\\rho}$, which is in very good agreement with the numerical value $T^{Min}_c=0.170\\sqrt[3]{\\rho}$ [Phys.Lett.B697:153-158,2011]. This value of $T^{Min}_c$ corresponds to the value of the Weyl's coupling $\\gamma=-0.06$ in table (1) of [Phys.Lett.B697:153-158,2011]. We calculate the $T^{Min}_c\\approx 0.21408\\sqrt[3]{\\rho}$ for another Weyl's coupling $\\gamma=0.02$ and the the conformal dimension $\\triangle_{-}=1$. Further, we show that the critical exponent is $\\beta=1/2$. We observe that there is a linear relation between the charge density $\\rho$ and the chemical potential difference $\\mu-\\mu_c$ qualitatively matches the numerical curves.

  18. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, William L. (Los Alamos, NM); Kubat-Martin, Kimberly A. (Espanola, NM); Salazar, Kenneth V. (Espanola, NM); Phillips, David S. (Los Alamos, NM); Peterson, Dean E. (Los Alamos, NM)

    1994-01-01

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi.sub.a Pb.sub.b Sr.sub.c Ca.sub.d Cu.sub.e O.sub.f wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10.+-.z by reacting a mixture of Bi.sub.4 Sr.sub.3 Ca.sub.3 Cu.sub.4 O.sub.16.+-.z, an alkaline earth metal cuprate, e.g., Sr.sub.9 Ca.sub.5 Cu.sub.24 O.sub.41, and an alkaline earth metal plumbate, e.g., Ca.sub.2-x Sr.sub.x PbO.sub.4 wherein x is about 0.5, is disclosed.

  19. Method of manufacture of single phase ceramic superconductors

    DOE Patents [OSTI]

    Singh, Jitrenda P. (Naperville, IL); Poeppel, Roger B. (Glen Ellyn, IL); Goretta, Kenneth C. (Downers Grove, IL); Chen, Nan (Downers Grove, IL)

    1995-01-01

    A ceramic superconductor is produced by close control of oxygen partial pressure during sintering of the material. The resulting microstructure of YBa.sub.2 Cu.sub.3 O.sub.x indicates that sintering kinetics are enhanced at reduced p(O.sub.2) and that because of second phase precipitates, grain growth is prevented. The density of specimens sintered at 910.degree. C. increased from 79 to 94% theoretical when p(O.sub.2) was decreased from 0.1 to 0.0001 MPa. The increase in density with decrease in p(O.sub.2) derives from enhanced sintering kinetics, due to increased defect concentration and decreased activation energy of the rate-controlling species undergoing diffusion. Sintering at 910.degree. C resulted in a fine-grain microstructure, with an average grain size of about 4 .mu.m. Post sintering annealing in a region of stability for the desired phase converts the second phases and limits grain growth. The method of pinning grain boundaries by small scale decompositive products and then annealing to convert its product to the desired phase can be used for other complex asides. Such a microstructure results in reduced microcracking, strengths as high as 230 MPa and high critical current density capacity.

  20. Method of manufacture of single phase ceramic superconductors

    DOE Patents [OSTI]

    Singh, J.P.; Poeppel, R.B.; Goretta, K.C.; Chen, N.

    1995-03-28

    A ceramic superconductor is produced by close control of oxygen partial pressure during sintering of the material. The resulting microstructure of YBa{sub 2}Cu{sub 3}O{sub x} indicates that sintering kinetics are enhanced at reduced p(O{sub 2}) and that because of second phase precipitates, grain growth is prevented. The density of specimens sintered at 910 C increased from 79 to 94% theoretical when p(O{sub 2}) was decreased from 0.1 to 0.0001 MPa. The increase in density with decrease in p(O{sub 2}) derives from enhanced sintering kinetics, due to increased defect concentration and decreased activation energy of the rate-controlling species undergoing diffusion. Sintering at 910 C resulted in a fine-grain microstructure, with an average grain size of about 4 {mu}m. Post sintering annealing in a region of stability for the desired phase converts the second phases and limits grain growth. The method of pinning grain boundaries by small scale decompositive products and then annealing to convert its product to the desired phase can be used for other complex asides. Such a microstructure results in reduced microcracking, strengths as high as 230 MPa and high critical current density capacity. 25 figures.

  1. Smooth double critical state theory for type-II superconductors

    E-Print Network [OSTI]

    H. S. Ruiz; A. Bad\\'\\ia-Majós

    2010-05-30

    Several aspects of the general theory for the critical states of a vortex lattice and the magnetic flux dynamics in type-II superconductors are examined by a direct variational optimisation method and widespread physical principles. Our method allows to unify a number of conventional models describing the complex vortex configurations in the critical state regime. Special attention is given to the discussion of the relation between the flux-line cutting mechanism and the depinning threshold limitation. This is done by using a smooth double critical state concept which incorporates the so-called isotropic, elliptical, T and CT models as well-defined limits of our general treatment. Starting from different initial configurations for a superconducting slab in a 3D magnetic field, we show that the predictions of the theory range from the collapse to zero of transverse magnetic moments in the isotropic model, to nearly force free configurations in which paramagnetic values can arbitrarily increase with the applied field for magnetically anisotropic current voltage laws. Noteworthily, the differences between the several model predictions are minimal for the low applied field regime.

  2. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, W.L.; Kubat-Martin, K.A.; Salazar, K.V.; Phillips, D.S.; Peterson, D.E.

    1994-04-05

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi[sub a]Pb[sub b]Sr[sub c]Ca[sub d]Cu[sub e]O[sub f] wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10[+-]z by reacting a mixture of Bi[sub 4]Sr[sub 3]Ca[sub 3]Cu[sub 4]O[sub 16[+-]z], an alkaline earth metal cuprate, e.g., Sr[sub 9]Ca[sub 5]Cu[sub 24]O[sub 41], and an alkaline earth metal plumbate, e.g., Ca[sub 2[minus]x]Sr[sub x]PbO[sub 4] wherein x is about 0.5, is disclosed.

  3. Contrasting confinement in superQCD and superconductors

    E-Print Network [OSTI]

    Jarah Evslin

    2009-03-05

    The vacuum of supersymmetric gauge theories (SQCD) with N=2 softly broken to N=1 resembles that of a BCS superconductor in that it has a condensate which collimates flux into vortices, leading to confinement. We embed the SQCD vortex into the BCS theory by identifying the N=1 vector multiplet mass and lightest massive chiral multiplet mass with the Fermi velocity divided by the London penetration depth and coherence length respectively. Thus embedded the superconductivity is type I and so the vortex core is smaller than the coherence length. Therefore nonlocal effects (Pippard electrodynamics) imply that the vortex solution is beyond the range of validity of the Landau-Ginzburg approximation implicit in the gauge theory. In other words, the vortex solution contains gradients greater than those for which the BCS and gauge theory descriptions agree. We consider more general superpotentials which are polynomial in the chiral multiplets and find that, unless one adds a SUSY breaking sector, one obtains type II superconductivity only when the superpotential perturbation is at least quadratic in the fundamental chiral multiplets and at least linear in the adjoint chiral multiplets, in which case there is no N=2 supersymmetry in the ultraviolet.

  4. AC susceptibility studies of high-[Tc] superconductors

    SciTech Connect (OSTI)

    Lee, Chang-Young.

    1993-01-01

    In this thesis, the authors studied physical properties of various high-T[sub c] superconductors by means of the ac susceptibility technique. They present the physics of ac susceptibility from first principles without relying on any specific models. From this, they can explain some fundamental but interesting features of experimental results such as symmetry properties of the ac susceptibility and its harmonics with respect to dc magnetic field. By measuring ac hysteresis they were able to obtain lower critical fields which were compared with some theoretical predictions. They found that the results were consistent with the BCS theory with modified gap parameter. By measuring ac hysteresis of granular samples at ultra low magnetic fields, they revealed the Meissner state and obtained Josephson lower critical fields, which was also found to be in consistence with the BCS theory. They studied the critical state models in detail and obtained some useful equations which were used in analyzing magnetic field dependence of ac susceptibility. By comparing the equations with experimental results, they were able to perform quantitative analysis of some important physical parameters such as critical current density. From numerical calculations of ac susceptibility with the parameter values obtained by this procedure, they confirmed good agreement of theory with experimental data. They incorporated the theory of flux creep into the equation governing the steady state flux motion, from which they were able to explain the shift of ac susceptibility with operating frequency toward high temperatures. Through this study, quantitative results on the activation energy were obtained.

  5. AFRICAN AMERICAN PSYCHOLOGY Sample Syllabus

    E-Print Network [OSTI]

    Hopfinger, Joseph B.

    AFRICAN AMERICAN PSYCHOLOGY PSYC 503 Sample Syllabus Course Description and Overview: This course examines the psychology of the African American experience. We begin the course with an overview of Black/African American psychology as an evolving field of study and consider the Black/African American Psychology

  6. On analytical study of holographic superconductors with Born-Infeld electrodynamics

    E-Print Network [OSTI]

    Lai, Chuyu; Jing, Jiliang; Wang, Yongjiu

    2015-01-01

    Based on the Sturm-Liouville eigenvalue problem, Banerjee \\emph{et al.} proposed a perturbative approach to analytically investigate the properties of the ($2+1$)-dimensional superconductor with Born-Infeld electrodynamics [Phys. Rev. D {\\bf 87}, 104001 (2013)]. By introducing an iterative procedure, we will further improve the analytical results and the consistency with the numerical findings, and can easily extend the analytical study to the higher-dimensional superconductor with Born-Infeld electrodynamics. We observe that the higher Born-Infeld corrections make it harder for the condensation to form but do not affect the critical phenomena of the system. Our analytical results can be used to back up the numerical computations for the holographic superconductors with various condensates in Born-Infeld electrodynamics.

  7. Limited Liability Companies and Corporate Business Structures 

    E-Print Network [OSTI]

    Thompson, Bill; Polk, Wade; Hayenga, Wayne

    2009-01-07

    is also a key ad- vantage of incorporating. One disadvantage to incorporation is the potential for double taxation. Earnings that are taxed at the corporate level will be taxed a second time if disbursed as dividends or upon liquida- tion.... St. Louis, Missouri: Doanes Agricultural Services Co. Kole, Glenn A. and Sherrill B. Nott. 2001. Farm Organization Options. Staff Paper, pp. 2001- 43. Department of Agricultural Economics, Michigan State University, East Lansing. Thompson, William...

  8. The Corporate Headquarters for Alabama Power Company 

    E-Print Network [OSTI]

    Reardon, J. G.; Penuel, K. M.

    1987-01-01

    management systems are a prime objective f the company. Considerable attention has been give to the public information aspects during the desi n phase. The original equipment room layout and floor 478 ESL-IE-87-09-75 Proceedings from the Ninth Annual... tech nologies which are of mutual benefit to customer and utility. INTRODUCTION In order to consolidate all corporate head quarters personnel into a single facility, Alabama Power Company management initiated the design and construction of a...

  9. Financing energy efficiency via the Mortgage Corporation

    SciTech Connect (OSTI)

    Schaefer, M.L.

    1980-07-01

    Residential housing in the United States consumes more than 20% of all the energy used nationally each year. Home-mortgage lenders are in a position to assist homeowners in reducing this high level of energy consumption by taking advantage of a variety of financing methods now available to them. The Federal Home Loan Mortgage Corporation has taken several innovative steps to help support lenders' efforts to aid the homeowners of America in their quest to make their properties more energy-efficient.

  10. First Analysis Securities Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable Urban Transport Jump to: navigation, searchSecurities Corporation Jump

  11. Sekisui Jushi Corporation SJC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk,SageScheucoSedco Hills, California:Sekisui Jushi Corporation SJC

  12. Siemens Corporate Technology CT | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity for LowInformationShoshone County,SiCorporate Technology CT

  13. PowerSat Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975) |Texas:PottawattamiePowerSat Corporation Jump to: navigation,

  14. Colusa Biomass Energy Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open EnergyColoradoBiomass Energy Corporation Jump to:

  15. Corporate International Operations | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, HawaiiCorporate

  16. Corporate Operating Experience Program | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center HomeVehicleDepartment of EnergyContacts for ServicesCorporate

  17. Nanoscale interplay of strain and doping in a high-temperature superconductor

    SciTech Connect (OSTI)

    Zeljkovic, Ilija; Gu, Genda; Nieminen, Jouko; Huang, Dennis; Chang, Tay-Rong; He, Yang; Jeng, Horng-Tay; Xu, Zhijun; Wen, Jinsheng; Lin, Hsin; Markiewicz, Robert S.; Bansil, Arun; Hoffman, Jennifer E.

    2014-11-07

    The highest temperature superconductors are electronically inhomogeneous at the nanoscale, suggesting the existence of a local variable which could be harnessed to enhance the superconducting pairing. Here we report the relationship between local doping and local strain in the cuprate superconductor Bi?Sr?CaCu?O??x. We use scanning tunneling microscopy to discover that the crucial oxygen dopants are periodically distributed, in correlation with local strain. Our picoscale investigation of the intra-unit-cell positions of all oxygen dopants provides essential structural input for a complete microscopic theory.

  18. Low-field diamagnetic response of granular superconductors at finite temperatures

    SciTech Connect (OSTI)

    Auletta, C.; Raiconi, G. ); De Luca, R.; Pace, S. )

    1994-05-01

    We study the low-field diamagnetic response of granular superconductors at finite temperatures by means of a simple two-dimensional Josephson-junction array. The temperature effects are taken into account by inserting white-noise current sources in parallel to the resistively shunted junction circuit models of the Josephson junctions of the network. By this analysis we argue that a simplified one-dimensional description of the equivalent circuit, proposed by the authors for cylindrical granular superconductors, is still valid even in the presence of thermally activated flux jumps. A flux-creep picture for intergranular flux motion follows.

  19. AdS-CFT Correspondence, Non-commutative Geometry and Holographic Superconductor in Magnetic Field

    E-Print Network [OSTI]

    Souvik Pramanik; Subir Ghosh

    2015-09-25

    In this work, the effects of magnetic field on a Holographic Superconductor have been studied in non-commutative background through the AdS-CFT correspondence. The non-commutative correction has been incorporated here is the generalization of the Schwarzschild black hole metric in AdS. It has been found that the non-commutative effects tend to work against the black hole hair formation. This in turn shows negative effect on holographic superconductors. Indeed, it reduces the value of the critical magnetic field and furthermore the critical magnetic field vanishes before the temperature reaches to its critical value.

  20. AdS-CFT Correspondence, Non-commutative Geometry and Holographic Superconductor in Magnetic Field

    E-Print Network [OSTI]

    Souvik Pramanik; Subir Ghosh

    2015-10-08

    In this work, the effects of magnetic field on a Holographic Superconductor have been studied in non-commutative background through the AdS-CFT correspondence. The non-commutative correction has been incorporated here is the generalization of the Schwarzschild black hole metric in AdS. It has been found that the non-commutative effects tend to work against the black hole hair formation. This in turn shows negative effect on holographic superconductors. Indeed, it reduces the value of the critical magnetic field and furthermore the critical magnetic field vanishes before the temperature reaches to its critical value.

  1. The spin exchange interaction effect on Tc equation of anisotropic impure superconductors

    E-Print Network [OSTI]

    P. Udomsamuthirun; R. Supadanaison

    2008-04-10

    We study the influence of spin exchange interaction of impurity scattering on critical temperature of anisotropic impure superconductors. The model of random nonmagnetic and magnetic impurity are revised to cover the effect of spin exchange interaction . The sign of magnitude of the second-order Born scattering have been changed after consideration the spin exchange interaction effect that also effect to form of Tc equation. We can get the general Tc equation that can be described anisotropic impure superconductors well and cover all model done before.

  2. AdS-CFT Correspondence, Non-commutative Geometry and Holographic Superconductor in Magnetic Field

    E-Print Network [OSTI]

    Pramanik, Souvik

    2015-01-01

    In this work, the effects of magnetic field on a Holographic Superconductor have been studied in non-commutative background through the AdS-CFT correspondence. The non-commutative correction has been incorporated here is the generalization of the Schwarzschild black hole metric in AdS. It has been found that the non-commutative effects tend to work against the black hole hair formation. This in turn shows negative effect on holographic superconductors. Indeed, it reduces the value of the critical magnetic field and furthermore the critical magnetic field vanishes before the temperature reaches to its critical value.

  3. Symmetry breaking patterns and collective modes of spin-one color superconductors

    E-Print Network [OSTI]

    Tomas Brauner; Jin-yi Pang; Qun Wang

    2009-09-23

    Spin-one color superconductor is a viable candidate phase of dense matter in the interiors of compact stars. Its low-energy excitations will influence the transport properties of such matter and thus have impact on late-stage evolution of neutron stars. It also provides a good example of spontaneous symmetry breaking with rich breaking patterns. In this contribution, we reanalyze the phase diagram of a spin-one color superconductor and point out that a part of it is occupied by noninert states, which have been neglected in literature so far. We classify the collective Nambu--Goldstone modes, which are essential to the transport phenomena.

  4. Possible Routes to Frictionless Transport of Electronic Fluids in High-Temperature Superconductors

    E-Print Network [OSTI]

    Zotin K-H Chu

    2009-12-23

    Electric-field-driven transport of electronic fluids in metallic glasses as well as three-dimensional amorphous superconductors are investigated by using the verified approach which has been successfully adopted to study the critical transport of glassy solid helium in very low temperature environment. The critical temperatures related to the nearly frictionless transport of electronic fluids were found to be directly relevant to the superconducting temperature of amorphous superconductors after selecting specific activation energies. Our results imply that optimal shear-thinning is an effective way to reach high-temperature charged superfluidity or superconductivity.

  5. Using core-shell metamaterial engineering to triple the critical temperature of a superconductor

    E-Print Network [OSTI]

    Smolyaninova, Vera N; Gresock, Thomas; Jensen, Christopher; Prestigiacomo, Joseph C; Osofsky, M S; Smolyaninov, Igor I

    2015-01-01

    Recent experiments have shown the viability of the metamaterial approach to dielectric response engineering for moderately enhancing the transition temperature, Tc, of a superconductor. In this report, we demonstrate the use of Al2O3-coated aluminium nanoparticles to form the recently proposed epsilon near zero (ENZ) core-shell metamaterial superconductor with a Tc that is three times that of pure aluminium. IR reflectivity measurements confirm the predicted metamaterial modification of the dielectric function thus demonstrating the efficacy of the ENZ metamaterial approach to Tc engineering. These results provide an explanation for the long known, but not understood, enhancement of the Tc of granular aluminum films.

  6. Fragile charge order in the non-superconducting ground state of the underdoped high temperature superconductors

    E-Print Network [OSTI]

    Tan, B. S.; Harrison, N.; Zhu, Z.; Balakirev, F. F.; Ramshaw, B. J.; Srivastava, A.; Sabok, S. A.; Dabrowski, B.; Lonzarich, G. G.; Sebastian, Suchitra E.

    2015-05-28

    Fragile charge order in the non-superconducting ground state of the underdoped high temperature superconductors B. S. Tan1, N. Harrison2, Z. Zhu2, F. F. Balakirev2, B. J. Ramshaw2, A. Srivastava1, S. A. Sabok3, B. Dabrowski3, G. G. Lonzarich1... (Dated: April 2, 2015) The normal state in the hole underdoped copper oxide superconductors has proven to be a source of mystery for decades. The measurement of a small Fermi surface by quantum oscillations on suppression of superconductivity by high...

  7. Nanoscale interplay of strain and doping in a high-temperature superconductor

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zeljkovic, Ilija; Gu, Genda; Nieminen, Jouko; Huang, Dennis; Chang, Tay-Rong; He, Yang; Jeng, Horng-Tay; Xu, Zhijun; Wen, Jinsheng; Lin, Hsin; et al

    2014-11-07

    The highest temperature superconductors are electronically inhomogeneous at the nanoscale, suggesting the existence of a local variable which could be harnessed to enhance the superconducting pairing. Here we report the relationship between local doping and local strain in the cuprate superconductor Bi?Sr?CaCu?O??x. We use scanning tunneling microscopy to discover that the crucial oxygen dopants are periodically distributed, in correlation with local strain. Our picoscale investigation of the intra-unit-cell positions of all oxygen dopants provides essential structural input for a complete microscopic theory.

  8. An Exact Hairy Black Hole Solution for AdS/CFT Superconductors

    E-Print Network [OSTI]

    Ding-fang Zeng

    2009-08-30

    We provide an exact hairy black hole solution to an $n+1$ dimensional complex scalar field model coupled with gravity. The model is characterized by a potential with one parameter. Depending on the magnitude of this parameter, the effective mass square of the scalar field can be both positive and negative. No matter what case it is, there are temperature ranges in which the hairy black hole is thermodynamically stable against decaying into its no-hair counterpart. We use this solution as an AdS/CFT superconductor model and study its conductivity-frequency relation and find typical features observed in other AdS/CFT superconductor models.

  9. Impurity-induced local density of states in a d-wave superconductor carrying a supercurrent 

    E-Print Network [OSTI]

    Zhang, DG; Ting, CS; Hu, Chia-Ren.

    2005-01-01

    and the bias voltage. DOI: 10.1103/PhysRevB.71.064521 PACS numberssd: 74.25.2q, 74.20.2z, 74.62.Dh The understanding of the local physics in cuprate or high- temperature superconductors sHTSd is one of the most chal- lenging problems in condensed matter... predomi- nantly d-wave symmetry.1 The zero-bias conductance peak sZBCPd in the tunneling spectroscopy of normal metal- cuprate superconductor junction with non-sn0md-directional contact provides one of the direct evidences for this symmetry.2 Due...

  10. Lienert named American Welding Society Fellow

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lienert Named American Welding Society Fellow Lienert named American Welding Society Fellow Lienert was inducted into the American Welding Society's 2012 Class of Fellows during...

  11. Asian American women entrepreneurs

    E-Print Network [OSTI]

    Suh, Clara J

    2014-01-01

    There are an estimated 620,300 firms owned by Asian American women nationwide, and they contribute $105 billion to the U.S. economy. They are also active in Greater Boston's innovation and entrepreneurship communities. ...

  12. The great American garage

    E-Print Network [OSTI]

    Miller, B. Alex (Brian Alex), 1977-

    2004-01-01

    How does one explore the suburban home? Go in through the garage, of course. Sales, bands, suicides, and business startups: The suburban garage is the most culturally flexible space in the entire American domestic environment. ...

  13. American Nuclear Society Awards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear Society Awards Established in 1999 by the Fusion Energy Division of the American Nuclear Society (ANS) and named after LLNL's co-founder, the Edward Teller Medal recognizes...

  14. Three orbital model for the iron-based superconductors

    SciTech Connect (OSTI)

    Daghofer, Maria [ORNL; Nicholson, Andrew D [ORNL; Moreo, Adriana [ORNL; Dagotto, Elbio R [ORNL

    2010-01-01

    The theoretical need to study the properties of the Fe-based high-Tc superconductors using reliable manybody techniques has highlighted the importance of determining what is the minimum number of orbital degrees of freedom that will capture the physics of these materials. While the shape of the Fermi surface FS obtained with the local-density approximation LDA can be reproduced by a two-orbital model, it has been argued that the bands that cross the chemical potential result from the strong hybridization of three of the Fe 3d orbitals. For this reason, a three orbital Hamiltonian for LaOFeAs obtained with the Slater-Koster formalism by considering the hybridization of the As p orbitals with the Fe dxz, dyz, and dxy orbitals is discussed here. This model reproduces qualitatively the FS shape and orbital composition obtained by LDA calculations for undoped LaOFeAs when four electrons per Fe are considered. Within a mean-field approximation, its magnetic and orbital properties in the undoped case are here described for intermediate values of J/U. Increasing the Coulomb repulsion U at zero temperature, four different regimes are obtained: 1 paramagnetic, 2 magnetic ,0 spin order, 3 the same ,0 spin order but now including orbital order, and finally 4 a magnetic and orbital ordered insulator. The spin-singlet pairing operators allowed by the lattice and orbital symmetries are also constructed. It is found that for pairs of electrons involving up to diagonal nearest-neighbors sites, the only fully gapped and purely intraband spin-singlet pairing operator is given by k= fkdk,, d k,, with fk=1 or cos kx cos ky which would arise only if the electrons in all different orbitals couple with equal strength to the source of pairing.

  15. EA-296-B Rainbow Energy Marketing Corporation | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Marketing Corporation Order authorizing Rainbow Energy to export electric energy to Canada. EA-296-B Rainbow Energy (CN).pdf More Documents & Publications RECORD of Categorical...

  16. Citizens Electric Corporation- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Citizens Electric Corporation offers rebates and price reductions to its residential customers for purchasing and installing energy efficient equipment. Eligible equipment and measures include a...

  17. Ambient Corporation's Reply comments to DOE RFI: Addressing Policy...

    Broader source: Energy.gov (indexed) [DOE]

    communications will play ineneabling utilities to deploy cost-effective long-term smart grid benefits. Ambient Corporation's Reply comments to DOE RFI: Addressing Policy and...

  18. PRELIMINARY SURVEY OF SYLVANIA-CORNING NUCLEAR CORPORATION METALLURGIC...

    Office of Legacy Management (LM)

    Corporaion Metallurgical Laboratory in Bayside, New York THE FORMER SYLVANIA-CORNING NUCLEAR CORPORATION, INC. METALLURGICAL LABORATORY Bayside, New York Site Function late...

  19. High-Level Waste Corporate Board Presentation Archive | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Triay High-Level Waste Corporate Board, Mark Gilbertson EM Engineering & Technology Roadmap and Major Technology Demonstrations Office of River Protection Idaho National...

  20. Federal Power Act section 202(c) - Mirant Corporation, August...

    Broader source: Energy.gov (indexed) [DOE]

    On August 24, 2005 in response to a decision by Mirant Corporation to cease generation of electricity at its Potomac River generating station, the District of Columbia Public...

  1. Testimonials- Partnerships in Battery Technologies- Capstone Turbine Corporation

    Broader source: Energy.gov [DOE]

    Robert Gleason, Senior Vice President of Product Development for Capstone Turbine Corporation describes the benefits of a strategic partnership with the U.S. Department of Energy.

  2. Testimonials- Partnerships in R&D- Capstone Turbine Corporation

    Broader source: Energy.gov [DOE]

    Darren Jamison, President and CEO of Capstone Turbine Corporation, shares his experience of partnering with the U.S. Department of Energy.

  3. Sandia Energy - ECIS-Automotive Fuel Cell Corporation: Hydrocarbon...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ECIS-Automotive Fuel Cell Corporation: Hydrocarbon Membrane Fuels the Success of Future Generation Vehicles Home Energy Transportation Energy CRF Partnership Energy Efficiency...

  4. Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve P. V. Leksin,1

    E-Print Network [OSTI]

    Fominov, Yakov

    Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve P. V. Leksin,1 N on the mutual orientation of magnetizations of Fe1 and Fe2 layers in the spin valve system CoOx=Fe1=Cu=Fe2=Pb of the SC triplet spin valve theory gives direct evidence for the long-range triplet superconductivity

  5. P-wave holographic superconductor/insulator phase transitions affected by dark matter sector

    E-Print Network [OSTI]

    Rogatko, Marek

    2015-01-01

    The holographic approach to building the p-wave superconductors results in three different models: the Maxwell-vector, the SU(2) Yang-Mills and the helical one. In the probe limit approximation, we analytically examine the properties of the first two models in the theory with {\\it dark matter} sector. It turns out that the effect of dark matter on the Maxwell-vector p-wave model is the same as on the s-wave superconductor studied earlier. For the non-Abelian model we study the phase transitions between p-wave holographic insulator/superconductor and metal/superconductor. Studies of marginally stable modes in the theory under consideration allow us to determine features of p-wave holographic droplet in a constant magnetic field. The superconducting transition temperature increases with the growth of the {\\it dark matter} sector coupling constant $\\alpha$, while the critical chemical potential $\\mu_c$ for the quantum phase transition between insulator and metal is a decreasing function of $\\alpha$.

  6. Conductance characteristics between a normal metal and a clean superconductor carrying a supercurrent 

    E-Print Network [OSTI]

    Zhang, DG; Ting, CS; Hu, Chia-Ren.

    2004-01-01

    The effect of a transverse supercurrent I-s up to the thermodynamic critical current on the low-temperature conductance characteristics between a normal metal N and a clean s- or d-wave superconductor (S) is theoretically investigated, covering from...

  7. Quantum Resistor-Capacitor Circuit with Majorana Fermion Modes in Chiral Topological Superconductor: Supplementary Material

    E-Print Network [OSTI]

    Choi, Mahn-Soo

    the detailed derivation and analysis of the linear-response admittance and the corresponding relaxationQuantum Resistor-Capacitor Circuit with Majorana Fermion Modes in Chiral Topological Superconductor;2 CONTENTS I. Model Hamiltonians 2 II. Linear-Response Admittance and Relaxation Resistance 3 A. Self

  8. Kinetic Energy Driven Pairing in Cuprate Superconductors Th. A. Maier,1

    E-Print Network [OSTI]

    Jarrell, Mark

    to the potential energy that electrons can gain by forming Cooper pairs. However, recent optical experiments showKinetic Energy Driven Pairing in Cuprate Superconductors Th. A. Maier,1 M. Jarrell,2 A. Macridin,2 of the electronic potential energy accompanied by an increase in kinetic energy. In the underdoped cuprates, optical

  9. Bulk superconductivity in Type II superconductors near the second critical field

    E-Print Network [OSTI]

    S. Fournais; B. Helffer

    2008-02-14

    We consider superconductors of Type II near the transition from the 'bulk superconducting' to the 'surface superconducting' state. We prove a new $L^{\\infty}$ estimate on the order parameter in the bulk, i.e. away from the boundary. This solves an open problem posed by Aftalion and Serfaty.

  10. Controlled manipulation of individual vortices in a superconductor E. W. J. Straver,1

    E-Print Network [OSTI]

    Moler, Kathryn A.

    Controlled manipulation of individual vortices in a superconductor E. W. J. Straver,1 J. E. Hoffman semiconductor,7 while vortices adjacent to an elec- tron gas in a quantum-Hall state may allow the creation on a cantilever with a sharp magnetic tip, such that scanning the cantilever at a constant height z above

  11. Superconductivity-induced phonon anomalies in high-Tc superconductors: A Raman intensity study

    E-Print Network [OSTI]

    Sipe,J. E.

    Superconductivity-induced phonon anomalies in high-Tc superconductors: A Raman intensity study O. V of a number of Raman-active phonons below the superconducting transition temperature in YBa2Cu3O7 x , Bi2Sr2Ca to obtain information about the superconducting state.4 Several years ago, Friedl et al.5 ob- served

  12. Nonlinear vs. bolometric radiation response and phonon thermal conductance in graphene-superconductor junctions

    SciTech Connect (OSTI)

    Vora, Heli; Nielsen, Bent; Du, Xu [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York (United States)

    2014-02-21

    Graphene is a promising candidate for building fast and ultra-sensitive bolometric detectors due to its weak electron-phonon coupling and low heat capacity. In order to realize a practical graphene-based bolometer, several important issues, including the nature of radiation response, coupling efficiency to the radiation and the thermal conductance need to be carefully studied. Addressing these issues, we present graphene-superconductor junctions as a viable option to achieve efficient and sensitive bolometers, with the superconductor contacts serving as hot electron barriers. For a graphene-superconductor device with highly transparent interfaces, the resistance readout in the presence of radio frequency radiation is dominated by non-linear response. On the other hand, a graphene-superconductor tunnel device shows dominantly bolometric response to radiation. For graphene devices fabricated on SiO{sub 2} substrates, we confirm recent theoretical predictions of T{sup 2} temperature dependence of phonon thermal conductance in the presence of disorder in the graphene channel at low temperatures.

  13. Crystal structure of the new FeSe1-x superconductor 

    E-Print Network [OSTI]

    Margadonna S.; McDonald M.T.; Kasperkiewicz K.; Mizuguchi Y.; Takano Y.; Fitch A.N.; Suard E.; Prassides K.; Takabayashi Y.

    2008-01-01

    The newly discovered superconductor FeSe1-x (x approximate to 0.08, T-c(onset) approximate to 13.5 K at ambient pressure rising to 27 K at 1.48 GPa) exhibits a structural phase transition from tetragonal to orthorhombic ...

  14. The Fractional London Equation and The Fractional Pippard Model For Superconductors

    E-Print Network [OSTI]

    José Weberszpil

    2012-07-23

    With the discovery of new superconductors there was a running to find the justifications for the new properties found in these materials. In order to describe these new effects some theories were adapted and some others have been tried. In this work we present an application of the fractional calculus to study the superconductor in the context of London theory. Here we investigated the linear London equation modified by fractional derivatives for non-differentiable functions, instead of integer ones, in a coarse grained scenario. We apply the fractional approach based in the modified Riemann-Liouville sense to improve the model in order to include possible non-local interactions and the media. It is argued that the e ects of non-locality and long memory, intrinsic to the formalism of the fractional calculus, are relevant to achieving a satisfactory phenomenological description. In order to compare the present results with the usual London theory, we calculated the magnetic field distribution for a mesoscopic superconductor system. Also, a fractional Pippard-like model is proposed to take into account the non-locality beside effects of interactions and the media. We propose that parameter alfa of fractionality can be used to create an alternative way to characterize superconductors.

  15. Neutron resonance in high-Tc superconductors is not the particle O. Tchernyshyov,1,2

    E-Print Network [OSTI]

    Chubukov, Andrey V.

    Neutron resonance in high-Tc superconductors is not the particle O. Tchernyshyov,1,2 M. R. Norman,2 that the energy of the resonance always exceeds 2 , twice the maximum d-wave gap, therefore the neutron resonance that the particle can exist at higher energies and might be observed in neutron scattering around 100 meV. DOI: 10

  16. Ceramic superconductor/metal composite materials employing the superconducting proximity effect

    DOE Patents [OSTI]

    Holcomb, Matthew J. (Manhattan Beach, CA)

    2002-01-01

    Superconducting composite materials having particles of superconducting material disposed in a metal matrix material with a high electron-boson coupling coefficient (.lambda.). The superconducting particles can comprise any type of superconductor including Laves phase materials, Chevrel phase materials, A15 compounds, and perovskite cuprate ceramics. The particles preferably have dimensions of about 10-500 nanometers. The particles preferably have dimensions larger than the superconducting coherence length of the superconducting material. The metal matrix material has a .lambda. greater than 0.2, preferably the .lambda. is much higher than 0.2. The metal matrix material is a good proximity superconductor due to its high .lambda.. When cooled, the superconductor particles cause the metal matrix material to become superconducting due to the proximity effect. In cases where the particles and the metal matrix material are chemically incompatible (i.e., reactive in a way that destroys superconductivity), the particles are provided with a thin protective metal coating. The coating is chemically compatible with the particles and metal matrix material. High Temperature Superconducting (HTS) cuprate ceramic particles are reactive and therefore require a coating of a noble metal resistant to oxidation (e.g., silver, gold). The proximity effect extends through the metal coating. With certain superconductors, non-noble metals can be used for the coating.

  17. Theory of nodal s±-wave pairing symmetry in the Pu-based 115 superconductor family

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Das, Tanmoy; Zhu, Jian -Xin; Graf, Matthias J.

    2015-02-27

    The spin-fluctuation mechanism of superconductivity usually results in the presence of gapless or nodal quasiparticle states in the excitation spectrum. Nodal quasiparticle states are well established in copper-oxide, and heavy-fermion superconductors, but not in iron-based superconductors. Here, we study the pairing symmetry and mechanism of a new class of plutonium-based high-Tc superconductors and predict the presence of a nodal s?? wave pairing symmetry in this family. Starting from a density-functional theory (DFT) based electronic structure calculation we predict several three-dimensional (3D) Fermi surfaces in this 115 superconductor family. We identify the dominant Fermi surface “hot-spots” in the inter-band scattering channel,more »which are aligned along the wavevector Q = (?, ?, ?), where degeneracy could induce sign-reversal of the pairing symmetry. Our calculation demonstrates that the s?? wave pairing strength is stronger than the previously thought d-wave pairing; and more importantly, this pairing state allows for the existence of nodal quasiparticles. Finally, we predict the shape of the momentum- and energy-dependent magnetic resonance spectrum for the identification of this pairing symmetry.« less

  18. Origin of the zero-bias conductance peaks observed ubiquitously in high-T-c superconductors 

    E-Print Network [OSTI]

    Hu, Chia-Ren.

    1998-01-01

    The midgap surface states predicted previously to exist on non-{n0m} surfaces of d(xa2-xb2-) superconductors (SC's) can be extended to midgap interface states (MIS's), which exist at almost all interface between grains of such SC's of different...

  19. Effect of doping in Bi-Pb-Sr-Ca-Cu-O superconductor composites 

    E-Print Network [OSTI]

    Ertekin, Abdullah

    2001-01-01

    The goal of this thesis is to analyze the solid solubility limit of dopants in Bi-Pb-Sr-Ca-Cu-O superconductors. We have studied the effect of Mn doping Bi-Pb-Sr-Ca-Cu-O. The electrical resistivity and critical temperature were measured for samples...

  20. Utica Corporation Plant-Wide Energy Assessment Report Final Summary (Entrance to Utica Corporation's Whitesboro Plant)

    SciTech Connect (OSTI)

    2002-03-01

    Utica Corporation conducted a plant-wide energy assessment of the manufacturing processes and utilities at its facility in Whiteboro, NY. As a result of the assessment, the company is now implementing six energy conservation projects that will result in significant cost savings and efficiency improvements.