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Sample records for mn 1973-1976 los

  1. LOS

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

    Advancing the art of tuberculosis detection April 19, 2013 LOS ALAMOS, N.M., April 19, 2013-New work from Los Alamos National Laboratory shows promise for stemming the advance of tuberculosis (TB) by revealing how the bacterium interacts with its human hosts and thus providing a new pathway for early detection in patients.A recent publication from the Los Alamos Biosensor Team describes the association of a key tuberculosis virulence factor, lipoarabinomannan (LAM) with human high-density

  2. LOS

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

    N.M., April 19, 2013-New work from Los Alamos National Laboratory shows promise for stemming the advance of tuberculosis (TB) by revealing how the bacterium interacts with its...

  3. Los

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

    LopezPersonalProfile.pdf LopezPersonalProfile.pdf (26.38 KB) More Documents & Publications Wattman_bio.pdf FAQS Reference Guide - Aviation Manager FAQS Reference Guide - Aviation Safety Officer

    change vehicle traffic- screening regimen at vehicle inspection station September 1, 2009 Los Alamos, New Mexico, September 1, 2009-Los Alamos National Laboratory is changing its staffing of the vehicle inspection station at East Jemez Road and Diamond Drive effective Saturday, September

  4. Team OptiMN

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

    University of Minnesota Team OptiMN "OptiMN Impact Home" Project Summary Designed to fit on the majority of North Minneapolis infill lots, the OptiMN Impact Home is a collaborative project between the University of Minnesota and Urban Homeworks. The overarching goal was a flexible, high-performance, energy-efficient, and affordable house that can be easily built by Urban Homeworks and purchased by eligible low-income residents of North Minneapolis through the Green Homes North program.

  5. MN Office of Energy Security | Open Energy Information

    Open Energy Info (EERE)

    MN Office of Energy Security Jump to: navigation, search Name: MN Office of Energy Security Place: St. Paul, MN Website: www.mnofficeofenergysecurity.c References: MN Office of...

  6. Living in Los Alamos

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

    Living in Los Alamos Living in Los Alamos The enchanting surroundings, extraordinary people, and rich history make Los Alamos so much more than just a place to do great work. Discover the many advantages of living and working in Los Alamos. AROUND LOS ALAMOS Communication KRSN Community Radio Los Alamos Daily Post Los Alamos Monitor Education Los Alamos Public Schools Pajarito Environmental Education Center University of New Mexico - Los Alamos The Arts Fuller Lodge Art Center Los Alamos Little

  7. Category:Minneapolis, MN | Open Energy Information

    Open Energy Info (EERE)

    16 total. SVFullServiceRestaurant Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVFullServiceRestauran... 89 KB SVHospital Minneapolis MN Northern States...

  8. Los Alamos National Laboratory

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

    Administration | (NNSA) Los Alamos National Lab Performance Evaluations FY 2016 FY 2016 Performance Evaluation Plan, Los Alamos National Security, LLC FY 2015 FY 2015 Performance Evaluation Report, Los Alamos National Security, LLC FY 2015 Performance Evaluation Report, Fee Determination Letter, Los Alamos National Security, LLC FY 2015 Performance Evaluation Plan, Los Alamos National Security, LLC FY 2014 FY 2014 Performance Evaluation Report, Los Alamos National Security, LLC FY 2014

  9. Los Alamos National Laboratory

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

    3, 2015 Projects save taxpayer dollars, promote environmental stewardship, sustainability LOS ALAMOS, N.M., April 22, 2015-Nearly 400 Los Alamos National Laboratory employees on 32...

  10. Living in Los Alamos

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

    Education Center University of New Mexico - Los Alamos The Arts Fuller Lodge Art Center Los Alamos Little Theatre Reel Deal Movie Theater County Services Aquatic...

  11. Los Alamos National Laboratory

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

    sustainability award October 14, 2010 LOS ALAMOS, New Mexico, October 14, 2010-Los Alamos National Laboratory recently received an Environmental Sustainability (EStar) ...

  12. Los Alamos National Laboratory

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

    6th Hazmat Challenge July 31, 2012 Competition tests skills of hazardous materials response teams LOS ALAMOS, New Mexico, July 31, 2012 What: Los Alamos National Laboratory (LANL)...

  13. Los Alamos VISTAS

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

    Los Alamos VISTAS Los Alamos VISTAS Los Alamos Vistas highlights the experimental physical sciences at Los Alamos-covering innovative, cross-disciplinary research and development-and producing breakthrough solutions to the most pressing national security challenges. All issues VISTAS cover Fall 2013: 70 years of making, modeling, measuring (pdf) VISTAS cover Winter 2012: Los Alamos NPAC research (pdf) VISTAS cover Fall 2010: MaRIE (pdf) VISTAS cover Winter 2010: Materials Strategy (pdf) VISTAS

  14. Los Alamos National Security, LLC Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    Security, LLC Los Alamos National Laboratory (LANL) Voluntary Protection Program (VPP) Assessment Los Alamos National Security, LLC Los Alamos National Laboratory (LANL) Voluntary...

  15. Los Alamos National Laboratory ...

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

    1 Los Alamos National Laboratory * Est. 1943 The Pulse-Newsletter of the Los Alamos Neutron Science Center and Accelerator Operations and Technology Division I N S I D E 2 From ...

  16. Los Alamos National Laboratory's

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

    takes part in Blue Star Museums program May 16, 2012 Free admission for active duty military, their family members LOS ALAMOS, New Mexico, May 16, 2012-Los Alamos National...

  17. exploration, Los Alamos Rover

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

    NASA agreements advance Mars exploration, Los Alamos Rover instrument a key component June ... LOS ALAMOS, N.M., June 17, 2015-NASA Administrator Charles Bolden and Jean-Yves Le Gall, ...

  18. Mn4+ emission in pyrochlore oxides

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

    Du, Mao-Hua

    2015-01-01

    For the existing Mn4+ activated red phosphors have relatively low emission energies (or long emission wavelengths) and are therefore inefficient for general lighting. Density functional calculations are performed to study Mn4+ emission in rare-earth hafnate, zirconate, and stannate pyrochlore oxides (RE2Hf2O7, RE2Zr2O7, and RE2Sn2O7). We show how the different sizes of the RE3+ cation in these pyrochlores affect the local structure of the distorted MnO6 octahedron, the Mn–O hybridization, and the Mn4+ emission energy. The Mn4+ emission energies of many pyrochlores are found to be higher than those currently known for Mn4+ doped oxides and should be closer to thatmore » of Y2O3:Eu3+ (the current commercial red phosphor for fluorescent lighting). The O–Mn–O bond angle distortion in a MnO6 octahedron is shown to play an important role in weakening Mn–O hybridization and consequently increasing the Mn4+ emission energy. Our result shows that searching for materials that allow significant O–Mn–O bond angle distortion in a MnO6 octahedron is an effective approach to find new Mn4+ activated red phosphors with potential to replace the relatively expensive Y2O3:Eu3+ phosphor.« less

  19. Los Alamos Employees' Scholarship

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

    Fifty-five New Mexico students receive Los Alamos Employees' Scholarship Fund scholarships May 3, 2010 New scholarship campaign begins today LOS ALAMOS, New Mexico, May 3, 2010-Fifty-five New Mexico students are receiving scholarships thanks to the generosity of Los Alamos National Laboratory employees who donated to the Los Alamos Employees' Scholarship Fund. Escalante High School senior Estevan Trujillo is the recipient of this year's platinum scholarship, which provides $7,500 in financial

  20. CRAD, NNSA - Maintenance (MN) | Department of Energy

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

    NNSA - Maintenance (MN) CRAD, NNSA - Maintenance (MN) CRAD for Maintenance (MN). Criteria Review and Approach Documents (CRADs) that can be used to conduct a well-organized and thorough assessment of elements of safety and health programs. CRADs consist of a Performance Objective that identifies the expectation(s) or requirement(s) to be verified, which reflect the complete scope of the assessment; Criteria that provide specifics by which the performance objectives are measured, including

  1. DOE - Office of Legacy Management -- Elk River Reactor - MN 01

    Office of Legacy Management (LM)

    Elk River Reactor - MN 01 FUSRAP Considered Sites Site: Elk River Reactor (MN.01 ) Eliminated from consideration under FUSRAP - Reactor was dismantled and decommissioned by 1974 Designated Name: Not Designated Alternate Name: None Location: Elk River , Minnesota MN.01-1 Evaluation Year: 1985 MN.01-1 Site Operations: Boiling water reactor demonstration, research and development program MN.01-1 Site Disposition: Eliminated MN.01-1 Radioactive Materials Handled: None Indicated Primary Radioactive

  2. Los Alamos National Laboratory

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

    and LANS partner to record $2 million in pledges for local United Way programs November 20, 2008 LOS ALAMOS, New Mexico, November 20, 2008- Los Alamos National Laboratory employees once again demonstrated concern for their communities and those in need by pledging a record $1 million to United Way programs in Northern New Mexico and Santa Fe. With a dollar-for-dollar match by Los Alamos National Security, LLC, which operates the Laboratory, the total contribution is more than $2 million.

  3. Los Alamos National Laboratory

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

    3 million to local United Way organizations, other nonprofits December 1, 2009 Los Alamos, New Mexico, December 1, 2009-Los Alamos National Laboratory employees once more demonstrated concern for their communities and those in need by pledging a record $1.3 million to United Way and other eligible nonprofit programs.Los Alamos National Security, LLC, which operates the Laboratory, plans to prorate its $1 million match among the selected nonprofit organizations, bringing the total donation to

  4. Los Alamos National Laboratory

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

    Recovery Act funds July 21, 2009 Funding will aid environmental cleanup and compliance Los Alamos, New Mexico, July 22, 2009-Los Alamos National Laboratory today announced plans to begin spending environmental cleanup funds made available under the American Recovery and Reinvestment Act. The $212 million in Recovery Act funds will go toward environmental compliance and cleaning up Cold War-era buildings slated for demolition. "The Recovery Act will help change the skyline of Los Alamos,

  5. Los Alamos National Laboratory

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

    30th Expanding Your Horizons conference March 16, 2009 Exposes participants to scientific career possibilities, provides teachers lesson ideas LOS ALAMOS, New Mexico, March 16, 2009-For the 30th consecutive year, middle- and high-school girls from New Mexico have the opportunity to participate in the Expanding Your Horizons conference (http://nmnwse.org/lawis/eyh/). The conference is scheduled for April 1 at the Los Alamos campus of the University of New Mexico and is cosponsored by Los Alamos

  6. Los Alamos National Laboratory

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

    5 million to local United Way organizations, other nonprofits November 18, 2010 LOS ALAMOS, New Mexico, November 18, 2010-Los Alamos National Laboratory employees have again demonstrated concern for their communities and those in need by pledging a record $1.5 million to United Way and other eligible nonprofit programs. Los Alamos National Security, LLC, which operates the Laboratory, plans to prorate its $1 million match among the selected nonprofit organizations, bringing the total donation to

  7. Los Alamos National Laboratory

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

    describes storm damage to environmental monitoring stations, canyons September 18, 2013 Stations supporting Santa Fe water utility returned to service LOS ALAMOS, N.M., Sept. 20, 2013 - Hours after a disaster declaration by Los Alamos County, Los Alamos National Laboratory officials on Friday described "millions" of dollars in damage to environmental monitoring stations, monitoring wells, access roads and badly eroded canyon bottoms. "Last week we experienced an epic event,"

  8. Los Alamos National Laboratory

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

    new student app July 15, 2014 Job searching tool for students, postdocs LOS ALAMOS, N.M., July 15, 2014-Los Alamos National Laboratory recently launched its new student mobile app that students and postdoctoral candidates can use to learn about employment opportunities, science research, education programs and more. The Los Alamos Students mobile app is free and can be downloaded from iTunes and Google Play (for android platforms). "The Laboratory's new Student App is a great way for

  9. through Los Alamos National

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

    Area schools get new computers through Los Alamos National Laboratory, IBM partnership May 8, 2009 LOS ALAMOS, New Mexico, May 8, 2009-Thanks to a partnership between Los Alamos National Laboratory and IBM, Northern New Mexico schools are recipients of fully loaded desktop and laptop computers. Officials from the Laboratory's Community Programs Office, the Española School Board, and elected officials including Española Mayor Joseph Maestas recently dedicated the technology center at Española

  10. exploration, Los Alamos Rover

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

    NASA agreements advance Mars exploration, Los Alamos Rover instrument a key component June 17, 2015 SuperCam's body to be built at Los Alamos and the mast in France LOS ALAMOS, N.M., June 17, 2015-NASA Administrator Charles Bolden and Jean-Yves Le Gall, president of the French space agency, Centre National d'Etudes Spatiales (CNES), signed an agreement Tuesday at the Paris Air Show for France to provide the mast unit for the SuperCam component of NASA's Mars 2020 rover. Los Alamos National

  11. Los Alamos National Laboratory

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

    Hazmat Challenge July 27, 2009 Competition test skills of hazardous materials response teams Los Alamos, New Mexico, July 27, 2009-Seven hazardous materials response teams from New...

  12. Los Alamos National Laboratory

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

    5th Hazmat Challenge July 27, 2011 Competition tests skills of hazardous materials response teams LOS ALAMOS, New Mexico, July 27, 2011-Twelve hazardous materials response teams...

  13. Los Alamos National Laboratory

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

    4th Hazmat Challenge July 22, 2010 Competition tests skills of hazardous materials response teams LOS ALAMOS, New Mexico, July 22, 2010-Fourteen hazardous materials response teams...

  14. Los Alamos, NASA

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

    Unusual light in dark space revealed by Los Alamos, NASA November 7, 2014 Near-infrared ... between visible galaxies and stars the NASAJPL CIBER sounding rocket experiment has ...

  15. Magnetostructural phase transformations in Tb 1-x Mn 2 (Journal...

    Office of Scientific and Technical Information (OSTI)

    phase transformations in Tb 1-x Mn 2 Citation Details In-Document Search Title: Magnetostructural phase transformations in Tb 1-x Mn 2 Magnetism and phase transformations ...

  16. Magnetocrystalline anisotropy in UMn<mn>2mn>Ge>2mn> and related Mn-based actinide ferromagnets

    SciTech Connect (OSTI)

    Parker, David S.; Ghimire, Nirmal; Singleton, John; Thompson, J. D.; Bauer, Eric D.; Baumbach, Ryan; Mandrus, David; Li, Ling; Singh, David J.

    2015-05-04

    We present magnetization isotherms in pulsed magnetic fields up to 62 Tesla, supported by first principles calculations, demonstrating a huge uniaxial magnetocrystalline anisotropy energy - approximately 20 MJ/m3 - in UMn<mn>2mn>Ge>2mn>. This large anisotropy results from the extremely strong spin-orbit coupling affecting the uranium 5 f electrons, which in the calculations exhibit a substantial orbital moment exceeding 2 μB. Finally, we also find from theoretical calculations that a number of isostructural Mn-actinide compounds are expected to have similarly large anisotropy.

  17. LOS ALAMOS, New Mexico, October 11, 2011-Los Alamos National...

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

    Ad Building demolition, recycling completed October 11, 2011 Project finished under budget, ahead of schedule LOS ALAMOS, New Mexico, October 11, 2011-Los Alamos National...

  18. [Los Alamos National Laboratory]; Durakiewicz, Tomasz [Los Alamos...

    Office of Scientific and Technical Information (OSTI)

    Time-resolved carrier distributions in graphene Gilbertson, Steve Michael Los Alamos National Laboratory; Durakiewicz, Tomasz Los Alamos National Laboratory; Zhu, Jian - Xin...

  19. Los Alamos National Laboratory - Los Alamos Canyon | Department...

    Office of Environmental Management (EM)

    - Los Alamos Canyon January 1, 2014 - 12:00pm Addthis US Department of Energy Groundwater Database Groundwater Master Report Installation Name, State: Los Alamos National...

  20. LOS ALAMOS, New Mexico, September 1, 2010-Los Alamos National...

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

    2010 Buildings would replace existing facilities at Technical Area 54 LOS ALAMOS, New Mexico, September 1, 2010-Los Alamos National Laboratory today announced it has obtained...

  1. LOS ALAMOS, New Mexico, December 16, 2010-Los Alamos National...

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

    2010 New LANL marks set for field investigations, shipments to WIPP LOS ALAMOS, New Mexico, December 16, 2010-Los Alamos National Laboratory finished 12 months worth of...

  2. Stockpile Stewardship: Los Alamos

    SciTech Connect (OSTI)

    McMillan, Charlie; Morgan, Nathanial; Goorley, Tom; Merrill, Frank; Funk, Dave; Korzekwa, Deniece; Laintz, Ken

    2012-01-26

    "Heritage of Science" is a short video that highlights the Stockpile Stewardship program at Los Alamos National Laboratory. Stockpile Stewardship was conceived in the early 1990s as a national science-based program that could assure the safety, security, and effectiveness of the U.S. nuclear deterrent without the need for full-scale underground nuclear testing. This video was produced by Los Alamos National Laboratory for screening at the Lab's Bradbury Science Museum in Los Alamos, NM and is narrated by science correspondent Miles O'Brien.

  3. Los Alamos National Laboratory

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

    70th anniversary app for iPhone, iPads June 5, 2013 LOS ALAMOS, N.M., June 4, 2013-Los Alamos National Laboratory has launched its first app for iPhones and iPads as part of the Laboratory's yearlong celebration of 70 years serving the nation. The free application is available from the Apple Store (search for Los Alamos National Lab). The app enables users to learn more about the Laboratory's national security mission, cutting edge research, unique history, top-flight scientists and the many

  4. Los Alamos National Laboratory

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

    Star Status recognition for safety excellence from Department of Energy October 8, 2014 Lab largest site in DOE complex to attain Star level LOS ALAMOS, N.M., Oct. 8, 2014-Los Alamos National Laboratory has received Star- level recognition from the Department of Energy as part of DOE's Voluntary Protection Program (VPP). Los Alamos becomes the largest site in the DOE complex to receive VPP Star Status. "Hazards are part of our everyday work and achieving VPP Star recognition validates the

  5. Los Alamos National Laboratory

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

    Los Alamos National Laboratory Around 10 a.m. Pyongyang Time on Wednesday, January 6, 2016, seismic analysts around the world picked up something unusual-a 5.1-magnitude seismic event in the northeast corner of North Korea. Earthquakes of this size aren't common on the Korean Peninsula, which likely meant the violent shaking was caused by something else: an explosion. Enter Los Alamos National Laboratory. Los Alamos isn't just in the business of developing, testing, and maintaining explosives. A

  6. Los Alamos National Laboratory's

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

    (NNSA) Los Alamos National Laboratory Los Alamos National Laboratory DE-AC52-06NA25396 Operated by Los Alamos National Security, LLC Conformed to Modification 0341 dated 02/29/2016 BASIC Contract (Official) Modifications (Official) Funding Mods Available Upon Request Conformed Contract (Unofficial) LANL Basic Contract dated 12/21/05 (pdf, 5,501KB) LANL A004 (8/11/06) (pdf, 501KB) LANL Conformed Contract (Conformed to to Modification 0341 dated 02/29/2016) LANL A008 (9/29/06) (pdf, 485KB)

  7. Los Alamos, NASA

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

    Unusual light in dark space revealed by Los Alamos, NASA November 7, 2014 Near-infrared data could change the way we think about galaxies LOS ALAMOS, N.M., Nov. 7, 2014-By looking at the dark spaces between visible galaxies and stars the NASA/JPL CIBER sounding rocket experiment has produced data that could redefine what constitutes a galaxy. "What was very surprising is the brightness of many fluctuations that appear between stars and galaxies," said Los Alamos scientist Joseph Smidt,

  8. Stockpile Stewardship: Los Alamos

    ScienceCinema (OSTI)

    McMillan, Charlie; Morgan, Nathanial; Goorley, Tom; Merrill, Frank; Funk, Dave; Korzekwa, Deniece; Laintz, Ken

    2014-08-12

    "Heritage of Science" is a short video that highlights the Stockpile Stewardship program at Los Alamos National Laboratory. Stockpile Stewardship was conceived in the early 1990s as a national science-based program that could assure the safety, security, and effectiveness of the U.S. nuclear deterrent without the need for full-scale underground nuclear testing. This video was produced by Los Alamos National Laboratory for screening at the Lab's Bradbury Science Museum in Los Alamos, NM and is narrated by science correspondent Miles O'Brien.

  9. Los Alamos Neutron Science Center

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

    Neutron Science Center gets capacity boost December 2, 2010 Los Alamos National Security funds upgrade to key facility LOS ALAMOS, New Mexico, December 2, 2010-The National Nuclear Security Administration's Los Alamos Site Office and Los Alamos National Security, LLC, the contractor that operates Los Alamos National Laboratory, have agreed to allocate money LANS could have earned from its prime contract fee to upgrade a facility serving industrial designers and researchers at the Los Alamos

  10. Upper Los Alamos Canyon Cleanup

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

    Upper Los Alamos Canyon Cleanup Upper Los Alamos Canyon Cleanup The Upper Los Alamos Canyon Project involves cleaning up hazardous materials left over from some of the Laboratory's earliest activities. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Located along Los Alamos Canyon from 7th Street to the Pajarito Ski Hill, the Upper Los Alamos Canyon Project involves examining sites in present and former Laboratory

  11. Magnetic coupling in ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers

    SciTech Connect (OSTI)

    Wang, M.; Wadley, P.; Campion, R. P.; Rushforth, A. W.; Edmonds, K. W.; Gallagher, B. L.; Charlton, T. R.; Kinane, C. J.; Langridge, S.

    2015-08-07

    We report on a study of ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers using magnetometry and polarized neutron reflectivity (PNR). From depth-resolved characterization of the magnetic structure obtained by PNR, we concluded that the (Ga,Mn)As and (Al,Ga,Mn)As layers have in-plane and perpendicular-to-plane magnetic easy axes, respectively, with weak interlayer coupling. Therefore, the layer magnetizations align perpendicular to each other under low magnetic fields and parallel at high fields.

  12. SSL Demonstration: Bridge Lighting, Minneapolis, MN

    SciTech Connect (OSTI)

    2014-10-01

    DOE Solid-State Lighting GATEWAY summary brief for Phase II report on the longer-term performance of LED lighting installed in 2008 on the I-35W Bridge in Minneapolis, MN.

  13. Manhattan Project: Los Alamos Scientists

    Office of Scientific and Technical Information (OSTI)

    Second row: Robert Oppenheimer, Richard P. Feynman, Phil B. Porter. Third row: Gregory ... Research at Los Alamos, 1943-1944 Los Alamos After the War Scientists Richard Feynman

  14. Los Alamos National Laboratory

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

    participates in National Lab Day to increase awareness of science across the nation April 29, 2010 Events planned May 4-5 at Bradbury Science Museum LOS ALAMOS, New Mexico, April...

  15. Los Alamos National Laboratory

    Broader source: Energy.gov [DOE]

    HISTORYLos Alamos National Laboratory (LANL) is located in Los Alamos County in north central New Mexico (NM). LANL, founded in 1943 during World War II as Project Y, served as a secret facility...

  16. Los Alamos National Laboratory

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

    May 14, 2013 Value of up to 150 million over five years LOS ALAMOS, N.M., May 14, ... businesses will compete for environmental work worth up to 150 million over five years. ...

  17. Los Alamos Dynamics Application

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

    Department of Energy Los Alamos Demolition Work Progresses Toward Goal of Completing Cleanup Los Alamos Demolition Work Progresses Toward Goal of Completing Cleanup January 14, 2016 - 12:20pm Addthis The sewage treatment facility before demolition. The sewage treatment facility before demolition. Debris from the sewage treatment facility. Debris from the sewage treatment facility. Site of the demolished sewage treatment facility. Site of the demolished sewage treatment facility. The sewage

  18. Los Alamos NATIONAL LABORATORY

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

    / Los Alamos NATIONAL LABORATORY - - - - EST.1943 ....,,..... _ _ _ memorandum E ter Management ' . McMillan, DIR, AIOO -5101/Fax 7-2997 Office of the Director DIR-15-094 July 23, 2015 SUBJECT: SUBCONTRACTING OPPORTUNITIES WITH SMALL BUSINESS Los Alamos National Laboratory has maintained a strong institutional commitment to small business subcontracting over the years. It is my intention that we continue this commitment, which was formalized in the Prime Contract Appendix M provision for a

  19. Los Alamos National Laboratory

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

    April 13 construction forum in Albuquerque April 7, 2009 LOS ALAMOS, New Mexico, April 7, 2009- Companies big and small can learn about upcoming construction projects and procurement opportunities at Los Alamos National Laboratory by attending a construction forum April 13 at the Hotel Albuquerque, 800 Rio Grande Blvd. N.W., in Albuquerque's Old Town. "The forum is designed to provide key information about Laboratory construction business opportunities. We want interested businesses to have

  20. Los Alamos National Laboratory

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

    captures eight NNSA Pollution Prevention awards April 15, 2009 LOS ALAMOS, New Mexico, April 15, 2009-Los Alamos National Laboratory employee teams and organizations earned eight 2009 Pollution Prevention awards from the National Nuclear Security Administration (NNSA). The awards are based on an NNSA-wide competition that acknowledges pollution prevention, recycling, and affirmative procurement accomplishments. The Laboratory also received a Department of Energy "E Star" award for its

  1. Los Alamos National Laboratory

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

    scientists will codirect $14.5 million National Center for Systems Biology July 28, 2009 Lab contributes computer modeling, antibody engineering capabilities Los Alamos, New Mexico, July 28, 2009- Los Alamos National Laboratory scientists will codirect a new National Center for Systems Biology located at the University of New Mexico in Albuquerque. The new Spatiotemporal Modeling Center (STMC) is funded by a $14.5 million, five- year grant from the National Institute for General Medical Sciences

  2. Los Alamos National Laboratory

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

    communicators capture numerous awards from Society for Technical Communication April 15, 2010 Recognizing outstanding technical communications products LOS ALAMOS, New Mexico, April 15, 2010-Los Alamos National Laboratory employees received a number of awards in the 2009 Technical Publications and Online Communication competition sponsored by the East Tennessee chapter of the Society for Technical Communication (STC). Laboratory entries competed at a regional, national and international level

  3. Los Alamos National Laboratory

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

    acknowledged for progress in safety excellence by Department of Energy August 4, 2010 Lab is awarded VPP Merit status LOS ALAMOS, New Mexico, August 4, 2010-Los Alamos National Laboratory has received Merit-level recognition from the Department of Energy as part of DOE's Voluntary Protection Program (VPP). Merit is a status for DOE contractors with highly effective safety programs who commit themselves to attain Star status within a five-year period. Star recognition is the highest achievement

  4. Los Alamos National Laboratory

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

    purchases nearly $1 billion in goods and services last fiscal year December 6, 2010 Surpasses goals for small business procurements LOS ALAMOS, New Mexico, December 6, 2010-Los Alamos National Laboratory purchased nearly $1 billion in goods and services in the 2010 fiscal year ending September 30, 2010. The $925 million in purchases was helped in part by funding from the American Reinvestment and Recovery Act the Laboratory received for environmental remediation and basic research.The Laboratory

  5. Los Alamos National Laboratory

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

    4th Hazmat Challenge July 22, 2010 Competition tests skills of hazardous materials response teams LOS ALAMOS, New Mexico, July 22, 2010-Fourteen hazardous materials response teams from New Mexico and Oklahoma will test their skills at the 14th annual Hazmat Challenge July 27-30 sponsored by Los Alamos National Laboratory. The challenge provides hazardous materials responders the opportunity to network and learn new techniques under realistic conditions in a safe environment. Held at the

  6. Los Alamos National Laboratory

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

    Department of Energy environmental sustainability award October 14, 2010 LOS ALAMOS, New Mexico, October 14, 2010-Los Alamos National Laboratory recently received an Environmental Sustainability (EStar) award from the Department of Energy for integrating sustainable practices in its design for the Radiological Laboratory/ Utility/Office Building (RLUOB). The RLUOB is part of the Lab's Chemistry and Metallurgy Research Replacement (CMRR) Project. The Lab ultimately expects to achieve Leadership

  7. Los Alamos National Laboratory

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

    Express Licensing program August 1, 2013 Streamlined procedure speeds business access to new technology LOS ALAMOS, N.M., August 1, 2013-With the launch of a new "Express Licensing" program, access to innovative technology invented at Los Alamos National Laboratory (LANL) has gotten easier. The new licensing alternative was announced today by David Pesiri, director of LANL's Technology Transfer Division. "The Express License program offers an additional licensing resource for

  8. Los Alamos National Laboratory

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

    strategy for long-term environmental sustainability March 1, 2013 Blueprint for planning work activities with the environment in mind LOS ALAMOS, N.M., March 1, 2013-The Department of Energy and Los Alamos National Laboratory have developed a long-term strategy for environmental stewardship and sustainability that provides a blueprint for protecting the environment while accomplishing the Laboratory's national security missions. "This plan represents a significant amount of effort on the

  9. Los Alamos National Laboratory

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

    May 14, 2013 Value of up to $150 million over five years LOS ALAMOS, N.M., May 14, 2013-Los Alamos National Laboratory has awarded a master task order agreement in which three small businesses will compete for environmental work worth up to $150 million over five years. The businesses each have offices in northern New Mexico. The agreement is for technical services for the Laboratory's Environmental Programs directorate and includes work such as environmental engineering design, regulatory

  10. Los Alamos National Laboratory

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

    September 23, 2013 Value of up to $400 million over five years LOS ALAMOS, N.M., Sept. 23, 2013-Los Alamos National Laboratory has awarded master task order agreements to three small businesses for environmental support services work worth up to $400 million within a five-year period. The businesses were selected based on a technical proficiency and lowest price basis. The companies-Terranear PMC, Navarro Research and Engineering, Inc. and Portage, Inc.-were chosen from 11 prospective bidders.

  11. Los Alamos National Laboratory

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

    recognizes employee teams with 2015 Pollution Prevention Awards April 22, 2015 Projects save taxpayer dollars, promote environmental stewardship, sustainability LOS ALAMOS, N.M., April 22, 2015-Nearly 400 Los Alamos National Laboratory employees on 32 teams received Pollution Prevention awards during an Earth Day awards ceremony on Wednesday, saving taxpayers $5.6 million while also reusing, recycling, re-tasking and re-routing waste. "The goal of the Laboratory's pollution prevention

  12. Los Alamos National Laboratory

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

    second Presidential Award as a climate champion December 8, 2015 LOS ALAMOS, N.M., Dec. 8, 2015-In recognition of their proactive commitment to protecting the environment of Northern New Mexico from the potential impacts of a changing climate, a consortium of Los Alamos National Laboratory's federal and contractor staff received the GreenGov Presidential Award on Nov. 30. "We recognized the need for a different approach after a devastating wildfire and a series of impactful environmental

  13. Los Alamos National Laboratory

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

    Los Alamos National Laboratory has been at the forefront of high-explosives research since the Manhattan Project in 1943. The science of high-explosive performance is central to stockpile stewardship. Yet, explosives science at the Laboratory isn't simply about maintaining and certifying the aging U.S. nuclear deterrent; it's also about developing novel applications of that science to other national security challenges. In 2015, Los Alamos executed more than 400 high-explosive-driven experiments

  14. Los Alamos National Laboratory

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

    Los Alamos National Laboratory i Table of Contents Letter from the Division Director 1 Innovation Prize Nominations 2 Innovation Prize Winner 5 About the Feynman Center for Innovation 6 Innovation Assets 7 Strategic Sponsored Work 8 National High Magnetic Field Laboratory 9 Licensing 10 SOLVE 11 Economic Development 12 STAR Cryoelectronics 13 Partnership 14 Verdesian Life Sciences 15 R&D 100 Awards 16 Federal Laboratory Consortium Awards 17 Los Alamos National Laboratory 1 As scientists and

  15. Los Alamos National Laboratory,

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

    LANS develop new mentor-protégé agreements July 8, 2008 Supporting Northern New Mexico business LOS ALAMOS, New Mexico, July 8, 2008-Los Alamos National Security, LLC recently entered into mentor-protégé agreements with two Northern New Mexico businesses, North Wind, Inc. and Performance Maintenance Inc. (PMI), under the auspices of a Department of Energy mentor-protégé program. The program provides developmental assistance to enhance the business and technical capabilities of small

  16. Los Alamos physicist Hockaday

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

    Hockaday honored for national security contributions December 9, 2014 LOS ALAMOS, N.M., Dec. 9, 2014-Associate Director for Experimental Physical Sciences Mary Hockaday of Los Alamos National Laboratory is the recipient of two significant honors this week. She earned a 2014 fellowship from the Association for the Advancement of Science (AAAS) and also a Distinguished Alumni Award from the New Mexico State University (NMSU) Alumni Association. "I have been truly surprised, humbled and

  17. High Mn austenitic stainless steel

    DOE Patents [OSTI]

    Yamamoto, Yukinori [Oak Ridge, TN; Santella, Michael L [Knoxville, TN; Brady, Michael P [Oak Ridge, TN; Maziasz, Philip J [Oak Ridge, TN; Liu, Chain-tsuan [Knoxville, TN

    2010-07-13

    An austenitic stainless steel alloy includes, in weight percent: >4 to 15 Mn; 8 to 15 Ni; 14 to 16 Cr; 2.4 to 3 Al; 0.4 to 1 total of at least one of Nb and Ta; 0.05 to 0.2 C; 0.01 to 0.02 B; no more than 0.3 of combined Ti+V; up to 3 Mo; up to 3 Co; up to 1W; up to 3 Cu; up to 1 Si; up to 0.05 P; up to 1 total of at least one of Y, La, Ce, Hf, and Zr; less than 0.05 N; and base Fe, wherein the weight percent Fe is greater than the weight percent Ni, and wherein the alloy forms an external continuous scale including alumina, nanometer scale sized particles distributed throughout the microstructure, the particles including at least one of NbC and TaC, and a stable essentially single phase FCC austenitic matrix microstructure that is essentially delta-ferrite-free and essentially BCC-phase-free.

  18. Local environment of Mn in Mn delta-doped Si layers

    SciTech Connect (OSTI)

    Xiao, Q.F.; Kahwaji, S.; Monchesky, T.L.; Gordon, R.A.; Crozier, E.D.

    2009-11-09

    Dilute magnetic semiconductors combine both magnetic ordering and semiconducting behaviour, leading to potential spintronic applications. Silicon containing dilute Mn impurities is a potential dilute magnetic semiconductor. We have grown Mn delta-doped films by deposition of 0.7 of a monolayer of Mn on Si(001) by molecular beam epitaxy and capping the film with Si. The magnetic properties are likely sensitive to the distribution of Mn on substitutional or interstitial sites and the formation of metallic precipitates. We have used polarization-dependent XAFS to examine the local structure. We compare to a thicker MnSi film grown on Si(111) and also examine the influence of lead on the manganese environment when used as a surfactant in the growth process.

  19. Structural, magnetic, and superconducting properties of pulsed-laser-deposition-grown La<mn>1.85mn> Sr<mn>0.15mn> CuO<mn>4mn> / La<mn>2mn>/>3mn> Ca<mn>1mn>/>3mn> MnO>3mn> superlattices on (001)-oriented LaSrAlO<mn>4mn> substrates

    SciTech Connect (OSTI)

    Das, S.; Sen, K.; Marozau, I.; Uribe-Laverde, M. A.; Biskup, N.; Varela, M.; Khaydukov, Y.; Soltwedel, O.; Keller, T.; Döbeli, M.; Schneider, C. W.; Bernhard, C.

    2014-03-12

    Epitaxial La<mn>1.85mn> Sr<mn>0.15mn> CuO<mn>4mn> / La<mn>2mn>/>3mn> Ca<mn>1mn>/>3mn> MnO>3mn> (LSCO/LCMO) superlattices (SL) on (001)- oriented LaSrAlO4 substrates have been grown with pulsed laser deposition (PLD) technique. Their structural, magnetic and superconducting properties have been determined with in-situ reflection high energy electron diffraction (RHEED), x-ray diffraction, specular neutron reflectometry, scanning transmission electron microscopy (STEM), electric transport, and magnetization measurements. We find that despite the large mismatch between the in-plane lattice parameters of LSCO (a = 0.3779 nm) and LCMO (a = 0.387 nm) these superlattices can be grown epitaxially and with a high crystalline quality. While the first LSCO layer remains clamped to the LSAO substrate, a sizeable strain relaxation occurs already in the first LCMO layer. The following LSCO and LCMO layers adopt a nearly balanced state in which the tensile and compressive strain effects yield alternating in-plane lattice parameters with an almost constant average value. No major defects are observed in the LSCO layers, while a significant number of vertical antiphase boundaries are found in the LCMO layers. The LSCO layers remain superconducting with a relatively high superconducting onset temperature of Tconset ≈ 36 K. The macroscopic superconducting response is also evident in the magnetization data due to a weak diamagnetic signal below 10 K for H ∥ ab and a sizeable paramagnetic shift for H ∥ c that can be explained in terms of a vortex-pinning-induced flux compression. The LCMO layers maintain a

  20. Properties of (Ga,Mn)As codoped with Li

    SciTech Connect (OSTI)

    Miyakozawa, Shohei; Chen, Lin; Matsukura, Fumihiro; Ohno, Hideo

    2014-06-02

    We grow Li codoped (Ga,Mn)As layers with nominal Mn composition up to 0.15 by molecular beam epitaxy. The layers before and after annealing are characterized by x-ray diffraction, transport, magnetization, and ferromagnetic resonance measurements. The codoping with Li reduces the lattice constant and electrical resistivity of (Ga,Mn)As after annealing. We find that (Ga,Mn)As:Li takes similar Curie temperature to that of (Ga,Mn)As, but with pronounced magnetic moments and in-plane magnetic anisotropy, indicating that the Li codoping has nontrivial effects on the magnetic properties of (Ga,Mn)As.

  1. Los Alamos National Laboratory

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

    technologies capture prestigious R&D 100 awards July 3, 2008 LOS ALAMOS, New Mexico, July 3, 2008-Cutting-edge innovations garnered Los Alamos National Laboratory researchers two of R&D Magazine's prestigious R&D 100 Awards. The awards, which will be presented October 16 in Chicago, recognize the top 100 industrial innovations worldwide in 2008. Winning Laboratory projects are the 3-D Tracking Microscope and Laser-Weave technology. "Congratulations to our R&D 100

  2. Los Alamos National Laboratory

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

    remembers former director Harold Agnew September 30, 2013 Manhattan Project pioneer was LANL director from 1970-1979 LOS ALAMOS, N.M., Sept. 30, 2013-Los Alamos National Laboratory Director Charlie McMillan today remembered Harold Agnew as a national treasure who transformed the Laboratory into what it is in the 21st century. "His contributions to the Laboratory made us the institution we are today," McMillan said. "It was his vision - decades ago - that recognized that national

  3. Los Alamos National Laboratory

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

    resumes transuranic waste shipments April 2, 2014 Shipments keep Lab on track to complete 3706 Campaign on schedule LOS ALAMOS, N.M., April 2, 2014-Los Alamos National Laboratory resumed shipments of transuranic waste yesterday from Technical Area 54 Area G. The shipments are part of an accelerated shipping campaign to remove 3,706 cubic meters of transuranic waste stored aboveground at Area G by June 30, 2014. Nearly 3,200 cubic meters of the waste have already been removed since the 3706

  4. Los Alamos National Laboratory

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

    pledge $2.17 million in 2015 giving campaign November 25, 2014 More than 250 nonprofits, social service providers will benefit LOS ALAMOS, N.M., Nov. 25, 2014-The work of more than 250 community and social service organizations will benefit from the more than $2.17 million pledged by Los Alamos National Laboratory employees to United Way and other nonprofits during the Laboratory's 2015 Employee Giving Campaign. "We are proud to help the many community focused non-profit organizations

  5. Los Alamos National Laboratory

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

    On a broad mesquite plain in central New Mexico, a small crew fits a metal cylinder into a rocket the size of a baseball bat, then slips the rocket onto guide rods on a platform. A "Los Alamos" logo on the fuselage certifies this launch as official science by the world-famous national laboratory, not a weekend outing with the kids. Bryce Tappan and a handful of scientists, engineers, and students from Los Alamos National Laboratory and New Mexico Tech stand back as another crew member

  6. Los Alamos National Laboratory's

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

    Bradbury Science Museum scares up Halloween fun October 25, 2010 LOS ALAMOS, New Mexico, October 25, 2010-When does science get spooktacular? To find out, climb into your costume and head on over to Los Alamos National Laboratory's Bradbury Science Museum for "High-Tech Halloween!" Back for its 17th year, the creepy educational event is from 4 to 7 p.m. October 29. Long-time staffers call High-Tech Halloween the museum's largest single-day draw. "Last year, about 2,300 visitors

  7. Los Alamos Patents

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

    Los Alamos Patents Los Alamos Patents Our research has led to over 1,000 U.S. patents granted, and more globally. Explore a snapshot of our patent portfolio below. Contact thumbnail of Marcus Lucero Head of Licensing Marcus Lucero Richard P. Feynman Center for Innovation (505) 665-6569 Email Disclaimer This list is reviewed and updated quarterly. Some patents may no longer be maintained or available for licensing. This list includes, but may not be all inclusive of, U.S. patents granted in or

  8. Los Alamos National Security awards protective force contract for Los

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

    Alamos National Laboratory to SOC Los Alamos Protective force contract awarded to SOC Los Alamos Los Alamos National Security awards protective force contract for Los Alamos National Laboratory to SOC Los Alamos The contract is for three years with two one-year extension options and has a value of about $251 million. October 28, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation

  9. Spin reorientation and Ce-Mn coupling in antiferromagnetic oxypnictide CeMnAsO

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

    Zhang, Qiang; Tian, Wei; Peterson, Spencer G.; Dennis, Kevin W.; Vaknin, David

    2015-02-18

    Structure and magnetic properties of high-quality polycrystlline CeMnAsO, a parent compound of the “1111”-type oxypnictides, have been investigated using neutron powder diffraction and magnetization measurements. We find that CeMnAsO undergoes a C-type antiferromagnetic order with Mn2+(S = 5/2) moments pointing along the c axis below a relatively high Néel temperature of TN = 347(1) K. Below TSR = 35 K, two simultaneous transitions occur where the Mn moments reorient from the c axis to the ab plane preserving the C-type magnetic order, and Ce moments undergo long-range AFM ordering with antiparallel moments pointing in the ab plane. Another transition tomore » a noncollinear magnetic structure occurs below 7 K. The ordered moments of Mn and Ce at 2 K are 3.32(4) μB and 0.81(4)μB, respectively. We find that CeMnAsO primarily falls into the category of a local-moment antiferromagnetic insulator in which the nearest-neighbor interaction (J1) is dominant with J2 < J1/2 in the context of J1 – J2 – Jc model. The spin reorientation transition driven by the coupling between Ce and the transition metal seems to be common to Mn, Fe, and Cr ions, but not to Co and Ni ions in the isostructural oxypnictides. As a result, a schematic illustration of magnetic structures in Mn and Ce sublattices in CeMnAsO is presented.« less

  10. Los Alamos ScienceFest

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

    Los Alamos ScienceFest Los Alamos ScienceFest WHEN: Jul 16, 2015 12:00 AM - Jul 18, 2015 6:00 PM WHERE: Los Alamos, New Mexico CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Los Alamos ScienceFest July 16-18, 2015 Event Description A 3-day science festival running July 16-18, 2015 Bradbury Events @ Los Alamos ScienceFest Join us during Los Alamos ScienceFest!-a 3-day festival of interactive demonstrations, hands-on activities and dynamic speakers meant to

  11. Magnetoelectric coupling tuned by competing anisotropies in Mn...

    Office of Scientific and Technical Information (OSTI)

    Magnetoelectric coupling tuned by competing anisotropies in Mn 1 - x Ni x TiO 3 Prev Next Title: Magnetoelectric coupling tuned by competing anisotropies in Mn 1 - x Ni x TiO ...

  12. LOS ALAMOS, New Mexico, December 14, 2010-Los Alamos National...

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

    December 14, 2010 Company will remove buried waste pipes from historic Cold War site LOS ALAMOS, New Mexico, December 14, 2010-Los Alamos National Laboratory today announced it has ...

  13. Van Andel Research Institute, Los

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

    Los Alamos National Laboratory to develop detailed computational model to study lung cancer September 14, 2015 LOS ALAMOS, N.M., Sept. 14, 2015-Scientists are developing a new...

  14. Los Alamos National Laboratory medical

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

    Institute Santa Fe Joined the Network Tatiana Canning Los Alamos H Taylor Los Alamos Frances Chavez Santa Fe Herbert Gonzales Santa Fe Michael Katz Santa Fe Jenny Laden Santa Fe...

  15. Los Alamos National Laboratory earns

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

    LOS ALAMOS, New Mexico, June 22, 2011-Los Alamos National ... a better way to produce thorium, an elemental sustainable ... It is so safe that it will never lead to a nuclear meltdown ...

  16. Los Alamos National Security awards

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

    grants to 24 nonprofits in Northern New Mexico February 5, 2009 LOS ALAMOS, New Mexico, February 5, 2009 - Local nonprofit organizations that benefit from volunteer efforts by employees of Los Alamos National Laboratory received an additional assist: $265,000 in special one-time Community Giving grants from Los Alamos National Security, LLC (LANS), the company that manages the Laboratory. Twenty-four nonprofit organizations from Los Alamos, Española, Taos, Santa Fe, Albuquerque, and Carlsbad

  17. Los Alamos National Laboratory

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

    7th annual Hazmat Challenge July 23, 2013 Competition tests skills of hazardous materials response teams from three states Editor's Note: News media representatives interested in attending the Hazmat Challenge can contact the Laboratory's Communications Office at 505-667-7000 to coordinate travel to the site. LOS ALAMOS, N.M., July 23, 2013-Twelve hazardous materials response teams from New Mexico, Missouri and Oklahoma will test their skills at the 17th annual Hazmat Challenge July 30 through

  18. Los Alamos National Laboratory

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

    July 2015 Films of the U.S. atmospheric nuclear tests provide breathtaking reminders of the power of nuclear weapons. Now a new project is salvaging and mining these deteriorating films for fresh-and crucial- scientific data about the weapons' yields. To understand why Lawrence Livermore National Laboratory nuclear weapons physicist Greg Spriggs is spearheading, in partnership with Los Alamos, an urgent search-and-rescue mission to salvage several thousand films documenting U.S. atmospheric

  19. Los Alamos National Laboratory

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

    ~The Chemistry of Powder & Explosives by Tenney L. Davis 11 National Security Science April 2016 Scientists at Los Alamos are solving national security challenges, from the threat of toothpaste bombs on airliners to ensuring the safety of our nuclear stockpile. In February 2014, the U.S. Department of Homeland Security (DHS) got wind of a potential new bomb threat: explosives packed into a toothpaste tube that a terrorist planned to smuggle onto an airplane headed for the Winter Olympics at

  20. Los Alamos National Laboratory

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

    April 2016 THE HURT-LOCKER SCHOOL Scenes such as this explosion in Iraq have been typical in recent wars as insurgents and terrorists create homemade explosives that are often deployed as roadside improvised explosive devices (IEDs). Explosive Ordnance Disposal (EOD) technicians in the U.S. Air Force, Army, Marine Corps, and Navy tackle the tough job of detecting, rendering harmless, and disposing of a wide range of explosive materials. Los Alamos teaches EOD techs how to save lives by

  1. Los Alamos National Laboratory

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

    ii Judicial Science School * Los Alamos National Laboratory * UCSD Jacobs School of Engineering Foreword Scientific evidence is introduced in our courts with increasing frequency and greater complexity, which requires judges to have a better understanding of science. Preparing judges to competently rule on the admissibility of scientific evidence represents a new challenge in judicial education. The role of uncertainty in science requires special attention. What better way to educate judges

  2. Los Alamos Needs Assessment | Department of Energy

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

    Los Alamos Needs Assessment Los Alamos Needs Assessment February 1999 This Needs Assessment for former Los Alamos National Laboratory workers was developed for the purpose of ...

  3. CASL - Los Alamos National Laboratory

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

    Los Alamos National Laboratory Los Alamos, NM A world-class, multi-disciplinary research and development institution focused on national security missions, Los Alamos brings to CASL particular strengths in computational and material sciences. Fission and fusion energy Advanced materials Nuclear radiation technologies Science policy Key Contributions Materials science and multiscale leadership Models and numerical methods leadership Advanced computational architectures Advanced code development

  4. Influence of interstitial Mn on magnetism in room-temperature ferromagnet Mn(1+delta)Sb

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

    Taylor, Alice E; Berlijn, Tom; Hahn, Steven E; May, Andrew F; Williams, Travis J; Poudel, Lekhanath N; Calder, Stuart A; Fishman, Randy Scott; Stone, Matthew B; Aczel, Adam A; et al

    2015-01-01

    We report elastic and inelastic neutron scattering measurements of the high-TC ferromagnet Mn(1+delta)Sb. Measurements were performed on a large, TC = 434 K, single crystal with interstitial Mn content of delta=0.13. The neutron diffraction results reveal that the interstitial Mn has a magnetic moment, and that it is aligned antiparallel to the main Mn moment. We perform density functional theory calculations including the interstitial Mn, and find the interstitial to be magnetic in agreement with the diffraction data. The inelastic neutron scattering measurements reveal two features in the magnetic dynamics: i) a spin-wave-like dispersion emanating from ferromagnetic Bragg positions (Hmore » K 2n), and ii) a broad, non-dispersive signal centered at forbidden Bragg positions (H K 2n+1). The inelastic spectrum cannot be modeled by simple linear spin-wave theory calculations, and appears to be significantly altered by the presence of the interstitial Mn ions. The results show that the influence of the int« less

  5. Influence of interstitial Mn on magnetism in room-temperature ferromagnet Mn(1+delta)Sb

    SciTech Connect (OSTI)

    Taylor, Alice E; Berlijn, Tom; Hahn, Steven E; May, Andrew F; Williams, Travis J; Poudel, Lekhanath N; Calder, Stuart A; Fishman, Randy Scott; Stone, Matthew B; Aczel, Adam A; Cao, Huibo; Lumsden, Mark D; Christianson, Andrew D

    2015-01-01

    We report elastic and inelastic neutron scattering measurements of the high-TC ferromagnet Mn(1+delta)Sb. Measurements were performed on a large, TC = 434 K, single crystal with interstitial Mn content of delta=0.13. The neutron diffraction results reveal that the interstitial Mn has a magnetic moment, and that it is aligned antiparallel to the main Mn moment. We perform density functional theory calculations including the interstitial Mn, and find the interstitial to be magnetic in agreement with the diffraction data. The inelastic neutron scattering measurements reveal two features in the magnetic dynamics: i) a spin-wave-like dispersion emanating from ferromagnetic Bragg positions (H K 2n), and ii) a broad, non-dispersive signal centered at forbidden Bragg positions (H K 2n+1). The inelastic spectrum cannot be modeled by simple linear spin-wave theory calculations, and appears to be significantly altered by the presence of the interstitial Mn ions. The results show that the influence of the int

  6. CaMn2Al10: Itinerant Mn magnetism on the verge of magnetic order

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

    Steinke, L.; Simonson, J. W.; Yin, W. -G.; Smith, G. J.; Kistner-Morris, J. J.; Zellman, S.; Puri, A.; Aronson, M. C.

    2015-07-24

    We report the discovery of CaMn2Al10, a metal with strong magnetic anisotropy and moderate electronic correlations. Magnetization measurements find a Curie-Weiss moment of 0.83μB/Mn, significantly reduced from the Hund's rule value, and the magnetic entropy obtained from specific heat measurements is correspondingly small, only ≈ 9% of Rln2. These results imply that the Mn magnetism is highly itinerant, a conclusion supported by density functional theory calculations that find strong Mn-Al hybridization. Consistent with the layered nature of the crystal structure, the magnetic susceptibility χ is anisotropic below 20 K, with a maximum ratio of χ[010]/χ[001] ≈ 3.5. A strong power-lawmore » divergence χ(T) ~ T–1.2 below 20 K implies incipient ferromagnetic order, an Arrott plot analysis of the magnetization suggests a vanishing low Curie temperature TC ~ 0. Our experiments indicate that CaMn2Al10 is a rare example of a system where the weak and itinerant Mn-based magnetism is poised on the verge of order.« less

  7. Opti-MN Impact House Presentation | Department of Energy

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

    Opti-MN Impact House Presentation Opti-MN Impact House Presentation Opti-MN was the Grand Winner of the 2015 Race to Zero Student Design Competition. View the presentation for the Opti-MN Impact House below. Read a full list of the winning teams. Opti-MN Presentation (5.74 MB) More Documents & Publications 2015 Race to Zero Competition Grand Winner and Grand Winner Finalist Team Submissions 2016 Race to Zero Competition Winner Team Presentations 2014 Race to Zero Student Design Competition:

  8. Unexpected crystal and magnetic structures in MnCu4In and MnCu4Sn

    SciTech Connect (OSTI)

    Provino, A.; Paudyal, D.; Fornasini, ML; Dhiman, I.; Dhar, SK.; Das, A.; Mudryk, Y.; Manfrinetti, P.; Pecharsky, VK

    2013-01-29

    We discovered a new compound MnCu4In with its own hexagonal structure type (hP12-P63mc, ternary ordered derivative of the hexagonal MgZn2-type) that becomes ferromagnetic at TC = 540 K. This transition temperature is higher than that found in the MnCu2In and MnCu2Sn alloys. In contrast, the homologous compound MnCu4Sn, which crystallizes in the cubic MgCu4Sn-type, orders antiferromagnetically with TN = 110 K. The neutron diffraction studies show ferromagnetic spin orientation in the {1 0 1} plane in MnCu4In with a magnetic moment of 4.5 ?B/Mn at 22 K, and a corresponding value of 4.7 ?B/Mn in the antiferromagnetic MnCu4Sn with propagation vector View the MathML source. The first-principles electronic structure calculations show that the unexpected difference in both magnetic and crystal structures of MnCu4In and MnCu4Sn is due to the difference in the Mn-3d bands and exchange interactions relating to different crystal anisotropy, coordination numbers, and interatomic distances.

  9. Los Alamos National Laboratory

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

    In 1914, Detroit businessman Ashley Pond constructed a log cabin on the Pajarito Plateau in north-central New Mexico. The one-room structure served as the office for the Pajarito Club, a guest ranch for well-heeled city folk looking for a little Wild West adventure. Although the Pajarito Club was short-lived (it disbanded in 1916), Pond remained in the area and went on to found the Los Alamos Ranch School in 1917. The elite prep school offered classical education and rigorous outdoor activity

  10. Solid Solution Phases in the Olivine-Type LiMnPO4/MnPO4 System

    SciTech Connect (OSTI)

    Chen, Guoying; Richardson, Thomas J.

    2009-04-07

    Nonstoichiometry is reported in the LiMnPO{sub 4}/MnPO{sub 4} system for the first time. As lithium is removed from crystalline LiMnPO{sub 4} by chemical or electrochemical methods, the resulting two phase mixture consists of stoichiometric LiMnPO{sub 4} and a delithiated phase, Li{sub y}MnPO{sub 4}, whose lattice parameters depend upon the global extent of delithiation and on the crystalline domain size of the delithiated phase. This behavior is reproduced during electrochemical insertion of lithium. Again, no evidence for nonstoichiometry was found in the vicinity of LiMnPO{sub 4}. Attempts to create single phase solid solutions by heating mixtures of the two phases failed due to the thermal instability of Li{sub y}MnPO{sub 4}.

  11. Independent Oversight Inspection, Los Alamos National Laboratory...

    Energy Savers [EERE]

    Inspection, Los Alamos National Laboratory - January 2007 Independent Oversight Inspection, Los Alamos National Laboratory - January 2007 January 2007 Independent Oversight...

  12. Los Alamos National Laboratory Los Alamos, New Mexico

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

    Applauding our innovators The 2005 Patent & Licensing Awards Carrying on the tradition of world-changing innovation Thursday, February 23, 2006 Los Alamos National Laboratory Los Alamos, New Mexico elcome to the eighth Annual Patent and Licensing Awards Reception! We are here this evening to honor our Laboratory innovators for the impressive collection of copyrighted, patented, and licensed technologies assembled at Los Alamos. While these recognized technologies represent the broad

  13. Los Alamos National Laboratory Los Alamos National Laboratory

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

    way. Together, Los Alamos National Laboratory (LANL) and EMC, are enhancing, designing, building, testing and deploying new cutting-edge technologies in an effort to meet some of...

  14. LOS ALAMOS, New Mexico, December 21, 2011-Los Alamos National...

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

    high performance computing, data storage, cyber security, cloud computing, analytics, materials science and data sharing, and mobility LOS ALAMOS, New Mexico, December 21,...

  15. LOS ALAMOS, New Mexico, December 20, 2010-Los Alamos National...

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

    Top 10 science & technology developments of 2010 December 20, 2010 LOS ALAMOS, New Mexico, ... Challenging conventional wisdom about solar wind-a new take on existing data Research ...

  16. Los Alamos National Security, LLC partners with Los Alamos National...

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

    from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Steve Sandoval Communications Office (505) 665-9206 Email Los Alamos National Security,...

  17. Los Alamos Dynamics Summer School

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

    Los Alamos Dynamics Summer School » Los Alamos Dynamics Summer School The Seventeenth Los Alamos Dynamics Summer School Program Information and Application Process Contact Institute Director Charles Farrar (505) 665-0860 Email Executive Administrator Ellie Vigil (505) 667-2718 Email Administrative Assistant Rebecca Duran (505) 665-8899 Email How to Apply Students should email the following documents to LADSSApply@lanl.gov Application Form (pdf) A one-page cover letter describing your interest

  18. Los Alamos National Laboratory again

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

    May 14, 2009 LOS ALAMOS, New Mexico, May 14, 2009-Employees of Los Alamos National Laboratory for the eighth consecutive year are the largest contributors to the United Way of Santa Fe County's annual giving campaign. Laboratory employees and Los Alamos National Security, LLC (LANS, the company that manages the Lab for the National Nuclear Security Administration) donated $170,000 to the United Way of Santa Fe County's 2008-2009 giving campaign. The Laboratory, LANS, and Lab's Community Programs

  19. Los Alamos National Laboratory again

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

    July 1, 2010 Lab, LANS to receive Top Workplace Contributor Award LOS ALAMOS, New Mexico, July 1, 2010-Employees of Los Alamos National Laboratory for the ninth consecutive year are the largest contributors to the United Way of Santa Fe County's annual giving campaign. Laboratory employees and Los Alamos National Security, LLC (LANS, the company that manages the Lab for the National Nuclear Security Administration) donated $113,000 to the United Way of Santa Fe County's 2009-2010 giving

  20. Los Alamos National Laboratory and

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

    and Seagate heat up data archiving for supercomputers March 21, 2016 Better alternative to "cold storage" promises to keep data accessible to improve research LOS ALAMOS, N.M., March 21, 2016-Seagate Technology (NASDAQ: STX) and Los Alamos National Laboratory (Los Alamos) are researching a new storage tier to enable massive data archiving for supercomputing. The joint effort is aimed at determining innovative new ways to keep massive amounts of stored data available for rapid access,

  1. Los Alamos National Laboratory attracts

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

    attracts record number of students this summer September 7, 2010 Students are "pipeline" for the future LOS ALAMOS, New Mexico, September 7, 2010-Los Alamos National Laboratory this summer attracted a record number of student interns, giving them the opportunity to conduct exciting and important research in a wide range of disciplines. More than 1,300 students interned in both technical and nontechnical fields. In addition to students, a record number of postdocs-415-are working at Los

  2. Los Alamos National Laboratory awards

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

    awards subcontracts for architectural and engineering services August 28, 2009 Northern New Mexico small businesses to provide services Los Alamos, New Mexico, August 28, 2009-Six small businesses are receiving subcontracts totaling up to $200 million for providing architectural and engineering services to Los Alamos National Laboratory.The small businesses receiving the subcontracts from Los Alamos National Security, LLC are Lopez Engineering, Inc.; Merrick & Company; Mosaic-STC, A Joint

  3. Los Alamos National Laboratory opens

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

    opens new waste repackaging facility March 7, 2013 Box line facility is largest of its kind ever built LOS ALAMOS, N. M., March 7, 2013-Los Alamos National Laboratory has brought a third waste repackaging facility online to increase its capability to process nuclear waste for permanent disposal. The "375 box line facility" enables Los Alamos to repackage transuranic (TRU) waste stored in large boxes. Built inside a dome once used to house containers of waste at the Laboratory, the

  4. Los Alamos National Security, LLC

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

    Security, LLC helps fund Domenici Scholarship August 14, 2008 Donates $500,000 to support area students LOS ALAMOS, New Mexico, August 14, 2008- Los Alamos National Security, LLC (LANS) is donating $500,000 to the Senator Pete Domenici Endowed Scholarship Fund, which has been established in honor of New Mexico's senior senator. The scholarship, to be managed by the Los Alamos National Laboratory Foundation, recognizes Domenici's more than three decades of support for Northern New Mexico, the

  5. Los Alamos Employees' Scholarship Fund

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

    Los Alamos Employees' Scholarship Fund Los Alamos Employees' Scholarship Fund The LAESF campaign raises funds for scholarships that support students from Northern New Mexico who are pursuing four-year undergraduate degrees in fields that will serve the region. June 13, 2012 Scholarship winner and Lab Director Scholarship winner Micaela Lucero and Lab Director Charlie McMillan Contacts Giving Campaigns & Volunteering Debbi Wersonick Community Partnerships Office (505) 667-7870 Email Los

  6. Los Alamos Dynamics Summer School

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

    Los Alamos Dynamics Summer School The Seventeenth Los Alamos Dynamics Summer School School overview and focus. Contact Institute Director Charles Farrar (505) 665-0860 Email Executive Administrator Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505) 665-8899 Email The Los Alamos Dynamics Summer School is a very selective summer school in which top upper-level US-citizen undergraduate students from universities around the nation attend lectures and work in teams of three

  7. leaves Los Alamos National Laboratory

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

    Final remote-handled waste canister leaves Los Alamos National Laboratory July 2, 2009 Sixteen canisters shipped in one month Los Alamos, New Mexico, July 2, 2009 - Los Alamos National Laboratory officials today announced the safe departure of the Laboratory's 16th and final canister of "remote-handled" radioactive waste destined for the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. The Laboratory began shipping the canisters exactly one month ago and averaged four

  8. leaves Los Alamos National Laboratory

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

    Milestone reached: Waste shipment leaves Los Alamos National Laboratory June 2, 2009 Remote-handled transuranic waste will go to WIPP LOS ALAMOS, New Mexico, June 2, 2009 - Los Alamos National Laboratory officials today announced the departure of the Laboratory's first shipment of a special type of radioactive waste destined for the Waste Isolation Pilot Plant in Carlsbad, New Mexico. The material, known as "remote-handled transuranic waste" (RH-TRU), has been stored at the Laboratory

  9. Los Alamos ScienceFest

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

    is participating by hosting a number of events, most of them featuring Lab scientists, engineers and technical staff. To view the full event schedule, visit the Los Alamos...

  10. Los Alamos National Laboratory top

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

    The international team of space explorers involved with the mission is relying in part on an ... Service Rocky Mountain Research Station and Los Alamos , provides insights ...

  11. Aspen Elementary, Los Alamos Middle

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

    Aspen Elementary, Los Alamos Middle School students take top award in 26th New Mexico Supercomputing Challenge April 27, 2016 'Solving the Rubik's Cube 2.0' includes 3D simulation LOS ALAMOS, N.M., April 26, 2016-Andy Corliss, Phillip Ionkov and Ming Lo of Aspen Elementary, and Max Corliss of Los Alamos Middle School won first place in the New Mexico Supercomputing Challenge for their project, "Solving the Rubik's Cube 2.0," Tuesday at Los Alamos National Laboratory. They created a

  12. Los Alamos National Laboratory opens

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

    brought a third waste repackaging facility online to increase its capability to process nuclear waste for permanent disposal. The "375 box line facility" enables Los Alamos to...

  13. Los Alamos Dynamics Summer School

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

    The Seventeenth Los Alamos Dynamics Summer School Program Information and Application Process Contact Institute Director Charles Farrar (505) 663-5330 Email Executive...

  14. Los Alamos National Security supports

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

    supports community nonprofits June 1, 2009 Recognition event Tuesday at Fuller Lodge LOS ALAMOS, New Mexico, June 1, 2009 - Nonprofit organizations are receiving more than 80,300...

  15. Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Dogliani, Harold O

    2011-01-19

    The purpose of the briefing is to describe general laboratory technical capabilities to be used for various groups such as military cadets or university faculty/students and post docs to recruit into a variety of Los Alamos programs. Discussed are: (1) development and application of high leverage science to enable effeictive, predictable and reliability outcomes; (2) deter, detect, characterize, reverse and prevent the proliferation of weapons of mass destruction and their use by adversaries and terrorists; (3) modeling and simulation to define complex processes, predict outcomes, and develop effective prevention, response, and remediation strategies; (4) energetic materials and hydrodynamic testing to develop materials for precise delivery of focused energy; (5) materials cience focused on fundamental understanding of materials behaviors, their quantum-molecular properties, and their dynamic responses, and (6) bio-science to rapidly detect and characterize pathogens, to develop vaccines and prophylactic remedies, and to develop attribution forensics.

  16. Los Alamos Venture Acceleration Fund accepting

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

    Security Administration | (NNSA) Los Alamos Selected as Atomic Weapons Laboratory Los Alamos, NM Groves selects Los Alamos, New Mexico, as site for separate scientific laboratory to design an atomic bomb

    Funding available for New Mexico businesses February 6, 2013 Los Alamos Venture Acceleration Fund accepting 2013 applications LOS ALAMOS, NEW MEXICO, February 6, 2013-The Venture Acceleration Fund (VAF) of Los Alamos National Security, LLC (LANS), the company that manages and operates Los

  17. Investigations of element spatial correlation in Mn-promoted...

    Office of Scientific and Technical Information (OSTI)

    Investigations of element spatial correlation in Mn-promoted Co-based Fischer-Tropsch synthesis catalysts This content will become publicly available on June 4, 2017 Title: ...

  18. LOS ALAMOS, New Mexico, June 13, 2012-Los Alamos National Laboratory...

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

    Newest Los Alamos facility receives LEED Gold certification June 13, 2012 LOS ALAMOS, New Mexico, June 13, 2012-Los Alamos National Laboratory's newest facility, the Radiological...

  19. Microsoft Word - MnO_Reduction bh

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

    May 2016 Figure 1. Schematic of flow-through system developed at SSRL. A reaction vessel with manganese oxides and media required for microbial experiments was kept anoxic with nitrogen gas and pH was measured using an environmental pH probe. A portion of the fluid was sampled using a peristaltic pump through anaerobic tubing to the beam line hutch where the x-ray beam sampled the Mn coordination environment, mineralogy, and redox state through a Kapton tape window on an x-ray flow-through cell.

  20. Spin caloritronics in graphene with Mn

    SciTech Connect (OSTI)

    Torres, Alberto Lima, Matheus P. Fazzio, A.; Silva, Antnio J. R. da

    2014-02-17

    We show that graphene with Mn adatoms trapped at single vacancies features spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a way it presents either a total spin polarized current, flowing in one given direction, or currents for both spins flowing in opposite directions without net charge transport. Moreover, we show that the thermal magnetoresistance can be tuned between ?100% and +100% by varying a gate potential.

  1. Los Alamos, New Mexico, November 4, 2009-Los Alamos National...

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

    MagViz, the SIMTECHE CO2 Capture Process, Lasonix, TeraOps Software Radio, and the Artificial Retina Project. This year's awards bring the Los Alamos total to 113 since the...

  2. LOS ALAMOS, New Mexico, OCTOBER 18, 2010-Los Alamos National...

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

    Consortium to design human trials of mosaic HIV vaccine October 18, 2010 LOS ALAMOS, New ... working to design and implement the first human trial of a mosaic HIV vaccine candidate. ...

  3. Manhattan Project: Los Alamos Street Scene

    Office of Scientific and Technical Information (OSTI)

    LOS ALAMOS STREET SCENE Los Alamos (The Town) Resources > Photo Gallery Los Alamos street scene. Fuller Lodge and the "Big House" are visible in the distance (see below). Above is ...

  4. Women in Los Alamos History

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

    Women in Los Alamos History Women in Los Alamos History WHEN: Mar 03, 2016 5:30 PM - 8:00 PM WHERE: Los Alamos Golf Course Clubhouse SPEAKER: Jill Tietjen CONTACT: Sarah Terrill (505) 709-0089 CATEGORY: Community INTERNAL: Calendar Login Event Description Tietjen is a well-known speaker on the topic of gender issues in the work place, and a motivational speaker for young women working toward educations and careers in science, engineering, technology and math (STEM). The community is invited to

  5. Los Alamos National Laboratory ships

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

    ships last of high-activity drums to WIPP November 25, 2008 LOS ALAMOS, New Mexico, November 25, 2008- The last group of unvented high- activity drums left Los Alamos National Laboratory for the Waste Isolation Pilot Plant (WIPP) near Carlsbad earlier this month. "This is a significant achievement for the Laboratory," said Mark Shepard of Los Alamos's Waste Disposition Project. "It closes a chapter on the February 2007 commitment to the Defense Nuclear Facilities Safety Board to

  6. Los Alamos National Laboratory Los Alamos National Laboratory

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

    Los Alamos National Laboratory 14 15 Technology Transfer 2011-2012 Progress Report Technology Transfer 2011-2012 Progress Report In 2011, The National Institutes of Health awarded a five-year Models of Infectious Disease Agent Study (MIDAS) grant to a team of researchers from Los Alamos National Laboratory (LANL) and Tulane University. This team, lead by principal investigator Sara Del Valle, connects social media and epidemiological research in an attempt to predict people's social behavior and

  7. Magnetic Moment Enhancement for Mn7 Cluster on Graphene

    SciTech Connect (OSTI)

    Liu, Xiaojie; Wang, Cai-Zhuang; Lin, Hai-Qing; Ho, Kai-Ming

    2014-08-21

    Mn7 cluster on graphene with different structural motifs and magnetic orders are investigated systematically by first-principles calculations. The calculations show that Mn7 on graphene prefers a two-layer motif and exhibits a ferrimagnetic coupling. The magnetic moment of the Mn7 cluster increases from 5.0 ?B at its free-standing state to about 6.0 ?B upon adsorption on graphene. Mn7 cluster also induces about 0.3 ?B of magnetic moment in the graphene layer, leading to an overall enhancement of 1.3 ?B magnetic moment for Mn7 on graphene. Detail electron transfer and bonding analysis have been carried out to investigate the origin of the magnetic enhancement.

  8. Voluntary Protection Program Onsite Review, Los Alamos National...

    Office of Environmental Management (EM)

    Security, Llc Los Alamos National Laboratory, Los Alamos, New Mexico - April 2014 Voluntary Protection Program Onsite Review, Los Alamos National Security, Llc Los Alamos National...

  9. Mn4+ emission in pyrochlore oxides

    SciTech Connect (OSTI)

    Du, Mao-Hua

    2015-01-01

    For the existing Mn4+ activated red phosphors have relatively low emission energies (or long emission wavelengths) and are therefore inefficient for general lighting. Density functional calculations are performed to study Mn4+ emission in rare-earth hafnate, zirconate, and stannate pyrochlore oxides (RE2Hf2O7, RE2Zr2O7, and RE2Sn2O7). We show how the different sizes of the RE3+ cation in these pyrochlores affect the local structure of the distorted MnO6 octahedron, the Mn–O hybridization, and the Mn4+ emission energy. The Mn4+ emission energies of many pyrochlores are found to be higher than those currently known for Mn4+ doped oxides and should be closer to that of Y2O3:Eu3+ (the current commercial red phosphor for fluorescent lighting). The O–Mn–O bond angle distortion in a MnO6 octahedron is shown to play an important role in weakening Mn–O hybridization and consequently increasing the Mn4+ emission energy. Our result shows that searching for materials that allow significant O–Mn–O bond angle distortion in a MnO6 octahedron is an effective approach to find new Mn4+ activated red phosphors with potential to replace the relatively expensive Y2O3:Eu3+ phosphor.

  10. NaNi sub 3 Mn sub 2 alloy as a tritium storage material

    SciTech Connect (OSTI)

    Ide, T.; Okuno, K.; Konishi, S.; Sakai, F.; Fukui, H.; Enoeda, M.; Naruse, Y.; Anderson, J.L.; Bartlit, J.R.; Los Alamos National Lab., NM )

    1989-01-01

    An all metal apparatus has been constructed and installed in the main cell of the Tritium System Assembly (TSTA) at Los Alamos National Laboratory, as a separate experiment, to handle about 2600 Ci of tritium for study of metal tritides of potential application for storing tritium in fusion fuel processing. The apparatus is similar to that used for protium/deuterium gas but some modifications were made to assure safe handling of tritium. The pressure-composition isotherms for the LaNi{sub 3}Mn{sub 2}-protium (H), deuterium (D) and tritium (T) system were measured to study isotopic effects in the temperature range of 60 {degree}C to 250 {degree}C, the pressure range below 120 kPa. 2 refs., 10 figs.

  11. Electrochemical behavior of β-MnO{sub 2} and MnOOH nanorods in different electrolytes

    SciTech Connect (OSTI)

    Chinnasamy, Revathi; Thangavelu, Rajendrakumar Ramasamy

    2015-06-24

    A manganese dioxide (β-MnO{sub 2}) and MnOOH nanoparticles has been synthesized by hydrothermal method. As prepared samples are analyzed by X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM). FESEM showed rod morphology within the diameter of 50–200 and length of few nanometers. These nanorods are immobilized on a Glassy Carbon Electrode (GCE) by drop cast method. The comparative electrochemical behavior of β-MnO{sub 2} and MnOOH rod modified GCE electrodes are analyzed by cyclic Voltammetry (CV) method in different electrolytes of 0.1M KCl, 0.1M Na{sub 2}SO{sub 4}, 0.1M NaOH, 0.1M PBS, 0.1M H{sub 2}SO{sub 4}. From the cyclic Voltammetry analysis found that in all the electrolytes both β-MnO{sub 2} and MnOOH modified GCE electrodes exhibit electrochemical behavior and KCl shows well redox properties as compared with others. There is also an observable difference in reduction potential value of both crystalline nanostructurers and concluded that β-MnO{sub 2} has high catalytic ability as compared with MnOOH rods.

  12. National Security Science | Los National Alamos Laboratory

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

    this Issue (pdf) In 2012 NSS received an NNSA Defense Programs AWARD OF EXCELLENCE National Security Science Mail Stop A142 Los Alamos National Laboratory Los Alamos, NM...

  13. Los Alamos Science in the News

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

    News newsroomassetsimagesnewsroom-icon.jpg Los Alamos Science in the News Read about what other news sources are saying about Los Alamos science achievements. Water ...

  14. Independent Oversight Review, Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    Independent Oversight Review, Los Alamos National Laboratory - January 2012 Independent Oversight Review, Los Alamos National Laboratory Chemistry and Metallurgy Research Facility ...

  15. Independent Oversight Assessment, Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    Assessment of Nuclear Safety Culture at the Los Alamos National Laboratory Chemistry and ... the Los Alamos National Laboratory Chemistry and Metallurgy Research Replacement Project. ...

  16. Los Angeles Mayors Office | Open Energy Information

    Open Energy Info (EERE)

    Mayors Office Jump to: navigation, search Name: Los Angeles Mayors Office Place: Los Angeles, California Zip: 90012-3239 Product: String representation "The Clean Tech ... LEED...

  17. Manhattan Project Sites at Los Alamos

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

    about the role Los Alamos played during the Cold War. Los Alamos Historical Society Arts and Crafts Building 4. ARTS & CRAFTS BUILDING Originally classrooms for the Ranch...

  18. Los Angeles County Metropolitan Transportation Authority Metro...

    Open Energy Info (EERE)

    County Metropolitan Transportation Authority Metro Jump to: navigation, search Name: Los Angeles County Metropolitan Transportation Authority (Metro) Place: Los Angeles, California...

  19. Independent Oversight Review, Los Alamos National Laboratory...

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

    Review of the Consequence Assessment Program at the Los Alamos National Laboratory This report provides the results of an independent review of the Los Alamos National Laboratory ...

  20. Independent Oversight Review, Los Alamos National Laboratory...

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

    Review of the Emergency Response Organization at the Los Alamos National Laboratory This report provides the results of an independent review of the Los Alamos National Laboratory ...

  1. Transitioning Los Alamos technology into the marketplace

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

    All Issues submit Transitioning Los Alamos technology into the marketplace A personal message from Duncan McBranch, Chief Technology Officer, Los Alamos National...

  2. Independent Oversight Review, Los Alamos National Laboratory...

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

    September 2011 Independent Oversight Review, Los Alamos National Laboratory - September 2011 September 2011 Review of the Facility Centered Assessment of the Los Alamos National ...

  3. Environmental Management Los Alamos Field Office | Department...

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

    Alamos National Laboratory in northern New Mexico. The Environmental Management Los Alamos Field Office (EM-LA) is located at Los Alamos National Laboratory in northern New Mexico. ...

  4. Los Angeles County- Commercial PACE

    Broader source: Energy.gov [DOE]

    Businesses in Los Angeles County may be eligible for the county's Property Assessed Clean Energy (PACE) program. PACE programs allow businesses to finance energy and water efficiency projects which...

  5. Los Alamos National Laboratory Safety

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

    Safety Cinema website earns international recognition June 6, 2013 Supports DOE, Voluntary Protection Program best practices LOS ALAMOS, N.M., June 6, 2013-Los Alamos National Laboratory's safety video website, Safety Cinema(tm), won the 2013 Communicator Award from the International Academy of Visual Arts in the education category. The website also won the International Summit Creative Award in the training category. Safety Cinema(tm) is a series of videos, fliers, posters, presentation slides

  6. Los Alamos National Laboratory board

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

    board renews plan for education, economic development, charitable giving September 18, 2013 $3.1 million approved for 2014 LOS ALAMOS, N.M., Sept. 18, 2013-The Los Alamos National Security, LLC Board of Governors last week approved a $3.1 million extension to the company's plan supporting education, economic development and charitable giving in Northern New Mexico. "We've tailored our programs very carefully to leverage dollars for the maximum benefit to the community," said Lab

  7. Los Alamos National Laboratory names

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

    cleanup subcontractors August 14, 2009 Small businesses will perform up to $100 million in environmental work Los Alamos, New Mexico, August 14, 2009-Los Alamos National Laboratory today named three small businesses as subcontractors for up to $100 million in environmental cleanup work. The companies will carry out most of the demolition funded under the American Recovery and Reinvestment Act, as well as other work."We have a commitment to small businesses and to Northern New Mexico,"

  8. Los Alamos National Laboratory names

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

    six scientists as 2009 Fellows November 5, 2009 Recognizes sustained, outstanding scientific contributions Los Alamos, New Mexico, November 5, 2009-Antoinette "Toni" Taylor, Stephen Becker, Joachim Birn, Lowell Brown, Patrick Colestock, and Samuel "Tom" Picraux have been designated 2009 Los Alamos National Laboratory Fellows in recognition of sustained, outstanding scientific contributions and exceptional promise for continued professional achievement. The title of Fellow is

  9. Los Alamos National Laboratory names

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

    new leadership for Weapons and Operations Directorates June 19, 2015 LOS ALAMOS, N.M., June 19, 2015-Los Alamos National Laboratory Director Charlie McMillan announced today that after nationwide searches, Robert (Bob) Webster has been selected to be the Laboratory's next Principal Associate Director for Weapons Programs, and Craig Leasure has been selected as the new Principal Associate Director for Operations. Webster to lead Weapons Directorate As the Weapons Program leader, Webster will be

  10. Los Alamos National Laboratory to

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

    to begin DARHT 2 operations January 29, 2008 Hydrodynamic testing at the frontier of science LOS ALAMOS, New Mexico, January 29, 2008- The Dual Axis Radiographic Hydrodynamic Test (DARHT) facility has officially become "dual" with authorization to begin full power operations of Axis 2, adding both new capability and higher energy to the unique accelerator facility. Los Alamos National Laboratory has received authorization from the National Nuclear Security Administration to begin

  11. Los Alamos honors Laboratory Fellows

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

    Laboratory Fellows November 19, 2012 Engineering, physics and computer science leaders announced LOS ALAMOS, N.M., November 19, 2012-Three distinguished members of the Los Alamos National Laboratory scientific staff are being honored with appointment as Laboratory Fellows for 2012. The committee ranked a collection of nominations on the basis of: 1) Sustained, high-level achievements in programs of importance to the Laboratory;2) A fundamental or important discovery that has led to widespread

  12. Los Alamos names Laboratory Fellows

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

    Laboratory Fellows for 2015 January 27, 2016 Honorees span sciences in materials, weapons physics and complex systems LOS ALAMOS, N.M., Jan. 27, 2016-Four Los Alamos National Laboratory scientists have been selected as 2015 Laboratory Fellows. The honorees this year are Michael Bernardin, Avadh Saxena, Carlos Tome and Piotr Zelenay. "The Laboratory Fellows Organization recognizes researchers for innovative scientific and technical advances in their respective fields," said Laboratory

  13. Two Los Alamos National Laboratory

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

    National Laboratory organizations receive Performance Excellence recognition from Quality New Mexico March 26, 2015 Laboratory is co-sponsor of QNM event in Albuquerque LOS ALAMOS, N.M., March 26, 2015-Los Alamos National Laboratory's Nuclear Material Control and Accountability Group and the Quality and Performance Assurance Division received 2014 Performance Excellence Recognition awards from Quality New Mexico and will be recognized at QNM's annual learning summit and awards ceremony April 7-8

  14. Los Alamos Employee Giving Campaign

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

    Los Alamos Employee Giving Campaign Los Alamos Employee Giving Campaign Laboratory employees contribute to the annual Employee Giving Campaign to support a wide range of programs offered by eligible nonprofit organizations. Contact Giving Campaigns & Volunteering Debbi Wersonick Community Partnerships Office (505) 667-7870 Email I Give Because campaign logo Investing in nonprofits helps address critical needs The Employee Giving Campaign helps provide funding for area nonprofit programs in

  15. Los Alamos National Laboratory named

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

    named top 50 employer for Latina women August 29, 2016 Latina Style magazine picks the best workplaces LOS ALAMOS, N.M., Aug. 29, 2016-Latina Style magazine today named Los Alamos National Laboratory as a top 50 employer for Latina women, the first national laboratory to achieve the distinction. More than 800 corporations and companies were reviewed. The magazine features the nation's best workplaces in its Latina Style 50 report in this month's issue. "This recognition from Latina Style

  16. Los Alamos honors Laboratory Fellows

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

    Los Alamos honors Laboratory Fellows Los Alamos honors Laboratory Fellows Charles Farrar, Steven Elliott and Mikhail Shashkov are being honored with appointment as Laboratory Fellows for 2012. November 19, 2012 Steven Elliott, Mikhail Shashkov and Charles Farrar Steven Elliott, Mikhail Shashkov and Charles Farrar Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email Chuck, Steven, and Mikhail have made exceptional contributions in their fields and to national security Engineering,

  17. Creating Los Alamos Women's Group

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

    Raeanna Sharp-Geiger-Creating a cleaner, greener environment March 28, 2014 Creating Los Alamos Women's Group Inspired by their informal dinner discussions, Raeanna Sharp-Geiger and a few of her female colleagues decided to create a new resource a few years ago, the Los Alamos Women's Group. They wanted to create a comfortable environment where women from all across the diverse Lab could network, collaborate, share ideas and gain a broader perspective of the Lab's mission. The Women's Group has

  18. Inverse spin Hall effect in Pt/(Ga,Mn)As

    SciTech Connect (OSTI)

    Nakayama, H.; Chen, L.; Chang, H. W.; Ohno, H.; Matsukura, F.

    2015-06-01

    We investigate dc voltages under ferromagnetic resonance in a Pt/(Ga,Mn)As bilayer structure. A part of the observed dc voltage is shown to originate from the inverse spin Hall effect. The sign of the inverse spin Hall voltage is the same as that in Py/Pt bilayer structure, even though the stacking order of ferromagnetic and nonmagnetic layers is opposite to each other. The spin mixing conductance at the Pt/(Ga,Mn)As interface is determined to be of the order of 10{sup 19 }m{sup −2}, which is about ten times greater than that of (Ga,Mn)As/p-GaAs.

  19. DOE - Office of Legacy Management -- Twin Cities Ammunition - MN 0-01

    Office of Legacy Management (LM)

    Twin Cities Ammunition - MN 0-01 FUSRAP Considered Sites Site: TWIN CITIES AMMUNITION (MN.0-01) Eliminated from further consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: New Brighton , Minnesota MN.0-01-1 Evaluation Year: 1987 MN.0-01-2 Site Operations: Site was formerly licensed under 10CFR 70 by the NRC. MN.0-01-1 MN.0-01-2 Site Disposition: Eliminated - No Authority - Referred to DOD MN.0-01-1 Radioactive Materials Handled: None

  20. Los Angeles County, California | Department of Energy

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

    County, California Los Angeles County, California Los Angeles County, California In order to make opportunities for home energy upgrades clear and consistent for the 10 million people living in Los Angeles County, the Los Angeles County Office of Sustainability decided to promote a single, regional residential efficiency program. The State of California had previously developed the statewide Energy Upgrade California program, which Los Angeles and other counties agreed to support through grant

  1. Los Alamos Dynamics Summer School Projects

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

    Los Alamos Dynamics Summer School » Los Alamos Dynamics Summer School-Overview Los Alamos Dynamics Summer School Projects Los Alamos Dynamics Summer School Projects and Resources Contact Institute Director Charles Farrar (505) 665-0860 Email Executive Administrator Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505) 665-8899 Email Past Programs and Resources 2015 2014 STUDENT RESOURCES Precollege Undergrads Graduates Postdocs Housing Los Alamos National Laboratory Logo

  2. Los Alamos STEM Challenge registration now open

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

    Los Alamos STEM Challenge registration now open Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Los Alamos STEM Challenge registration now open Recognition awaits students who can creatively present the future December 1, 2013 Los Alamos STEM Challenge The Los Alamos STEM Challenge runs from mid December through February 7. Contacts Community Programs Office Director Kurt Steinhaus

  3. Los Alamos exceeds waste shipping goal

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

    Los Alamos exceeds waste shipping goal Los Alamos exceeds waste shipping goal Los Alamos shipped 1,074 cubic meters of transuranic (TRU) and mixed low-level waste to the Waste Isolation Pilot Plant and other approved waste disposal facilities. July 8, 2013 A shipment carrying Los Alamos transuranic waste heads down NM 502, bound for the Waste Isolation Pilot Plant in southeastern New Mexico. A shipment carrying Los Alamos transuranic waste heads down NM 502, bound for the Waste Isolation Pilot

  4. Los Alamos exceeds waste shipping goal

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

    Los Alamos exceeds waste shipping goal Los Alamos exceeds waste shipping goal Los Alamos shipped 1,074 cubic meters of transuranic (TRU) and mixed low-level waste to the Waste Isolation Pilot Plant and other approved waste disposal facilities. July 8, 2013 A shipment carrying Los Alamos transuranic waste heads down NM 502, bound for the Waste Isolation Pilot Plant in southeastern New Mexico. A shipment carrying Los Alamos transuranic waste heads down NM 502, bound for the Waste Isolation Pilot

  5. Los Alamos National Laboratory The

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

    National Nuclear Security Administration | (NNSA) Kickoff Meeting ESPC KICK OFF MEET_ANDY 8_22_FINAL VERSION_2.pptx ESPC KICK OFF MEET_JOE 8_22_16_V2 (002).pptx Updated on 8/26/2016. Related Topics Acquisition & Project Management apm lanl Los alamos national laboratory Related News On Womens Equality Day, we celebrate NNSA's talented Women in STEM Los Alamos National Laboratory Steam Plant Project Reports and Analysis National Nuclear Security Administration | (NNSA)

    Reports and

  6. Los Alamos National Laboratory begins

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

    begins pumping tests on chromium plume May 22, 2013 Data will be used to help determine final remedy LOS ALAMOS, N.M., May 22, 2013-Los Alamos National Laboratory will begin pumping tests this summer at two groundwater monitoring wells located on Lab property within a chromium plume in the regional aquifer. The purpose of the pumping tests is to refine understanding of the plume properties within the regional aquifer and evaluate the potential for large-scale pumping to remove chromium. Chromium

  7. Los Alamos National Laboratory marks

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

    marks 20 years without full-scale nuclear testing September 26, 2012 LOS ALAMOS, New Mexico, Sept. 26, 2012-Two decades ago the last full-scale underground test of a nuclear weapon was conducted by Los Alamos National Laboratory at the Nevada Test Site. The test, code named "Divider," was detonated on Sept. 23, 1992 as the last of an eight-test series called "Julin." The test had an announced yield less than the equivalent of 20,000 tons of TNT. The purpose of the test, also

  8. Los Alamos National Laboratory, Sandia

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

    Sandia Labs, other major employers commit to STEM education in New Mexico November 20, 2014 Partnership aims to spark math, science inspiration in New Mexico students LOS ALAMOS, N.M., Nov. 20, 2014-Following up on a joint CEO proclamation on STEM education, Los Alamos National Laboratory, Sandia National Laboratories and several partners are hosting a discussion on "STEM Education in New Mexico" at 10 a.m. Saturday, Nov. 22 at Highland High School in Albuquerque. Laboratory Director

  9. Los Alamos scientist Christopher Lee

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

    Christopher Lee to receive DOE Office of Science Early Career Award May 6, 2015 LOS ALAMOS, N.M., May 6, 2015-Los Alamos National Laboratory researcher Christopher Lee is a recipient of the 2015 Early Career Research Program awards from the Department of Energy Office of Science. Lee was selected for his proposal on "Precision Probes of the Strong Interaction." "This prestigious award is recognition of Christopher Lee's outstanding work in nuclear and particle physics, which is a

  10. Magnetic domain tuning and the emergence of bubble domains in the bilayer manganite La<mn>2mn>->2mn>xSr<mn>1mn>+>2mn>xMn>2mn>O>7mn>(x=<mn>0.32mn>)

    SciTech Connect (OSTI)

    Jeong, Juyoung; Yang, Ilkyu; Yang, Jinho; Ayala-Valenzuela, Oscar E.; Wulferding, Dirk; Zhou, J. -S.; Goodenough, John B.; de Lozanne, Alex; Mitchell, J. F.; Leon, Neliza; Movshovich, Roman; Jeong, Yoon Hee; Yeom, Han Woong; Kim, Jeehoon

    2015-08-17

    Here, we report a magnetic force microscopy study of the magnetic domain evolution in the layered manganite La2–2xSr1+2xMn2O7 (with x = 0.32). This strongly correlated electron compound is known to exhibit a wide range of magnetic phases, including a recently uncovered biskyrmion phase. We observe a continuous transition from dendritic to stripelike domains, followed by the formation of magnetic bubbles due to a field- and temperature-dependent competition between in-plane and out-of-plane spin alignments. The magnetic bubble phase appears at comparable field and temperature ranges as the biskyrmion phase, suggesting a close relation between both phases. Based on our real-space images we construct a temperature-field phase diagram for this composition.

  11. Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos...

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

    tree mortality accelerating in forests May 19, 2015 Los Alamos' paper published in Nature Climate Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National...

  12. LOS ALAMOS, New Mexico, April 26, 2011-Los Alamos Middle School...

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

    April 26, 2011 LOS ALAMOS, New Mexico, April 26, 2011-Los Alamos Middle School student Cole Kendrick won the top prize in the 21st New Mexico Supercomputing Challenge hosted by Los ...

  13. CaMn2Al10: Itinerant Mn magnetism on the verge of magnetic order

    SciTech Connect (OSTI)

    Steinke, L.; Simonson, J. W.; Yin, W. -G.; Smith, G. J.; Kistner-Morris, J. J.; Zellman, S.; Puri, A.; Aronson, M. C.

    2015-07-24

    We report the discovery of CaMn2Al10, a metal with strong magnetic anisotropy and moderate electronic correlations. Magnetization measurements find a Curie-Weiss moment of 0.83μB/Mn, significantly reduced from the Hund's rule value, and the magnetic entropy obtained from specific heat measurements is correspondingly small, only ≈ 9% of Rln2. These results imply that the Mn magnetism is highly itinerant, a conclusion supported by density functional theory calculations that find strong Mn-Al hybridization. Consistent with the layered nature of the crystal structure, the magnetic susceptibility χ is anisotropic below 20 K, with a maximum ratio of χ[010][001] ≈ 3.5. A strong power-law divergence χ(T) ~ T–1.2 below 20 K implies incipient ferromagnetic order, an Arrott plot analysis of the magnetization suggests a vanishing low Curie temperature TC ~ 0. Our experiments indicate that CaMn2Al10 is a rare example of a system where the weak and itinerant Mn-based magnetism is poised on the verge of order.

  14. Los Alamos National Security LLC Selected to Manage Los Alamos National

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

    Laboratory | Department of Energy Security LLC Selected to Manage Los Alamos National Laboratory Los Alamos National Security LLC Selected to Manage Los Alamos National Laboratory December 21, 2005 - 4:51pm Addthis WASHINGTON, D.C. - Secretary of Energy Samuel W. Bodman announced today that Los Alamos National Security LLC has been selected to be the management and operations contractor for Los Alamos National Laboratory in New Mexico. Los Alamos National Security LLC is a limited liability

  15. LOS ALAMOS, New Mexico, March 5, 2012-Los Alamos National Laboratory

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

    imaging technology, world's fastest camera March 5, 2012 LOS ALAMOS, New Mexico, March 5, 2012-Los Alamos National Laboratory research and development engineer Scott Watson talks...

  16. LOS ALAMOS, New Mexico, June 9, 2008- Los Alamos National Laboratory...

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

    venture acceleration initiative partners June 9, 2008 LOS ALAMOS, New Mexico, June 9, 2008- Los Alamos National Laboratory is soliciting proposals from those interested in...

  17. LOS ALAMOS, New Mexico, July 11, 2011- Los Alamos National Laboratory...

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

    erosion control work July 11, 2011 Waste removed from canyon bottom LOS ALAMOS, New Mexico, July 11, 2011- Los Alamos National Laboratory work crews over the weekend installed...

  18. LOS ALAMOS, New Mexico, March 16, 2011-Employees of Los Alamos...

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

    by March 31 for nontraditional student scholarship March 16, 2011 LOS ALAMOS, New Mexico, March 16, 2011-Employees of Los Alamos National Laboratory or students working at the...

  19. LOS ALAMOS, New Mexico, November 1, 2011-Two Los Alamos National...

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

    engineers help New Mexico small businesses November 1, 2011 Program provides technical expertise LOS ALAMOS, New Mexico, November 1, 2011-Two Los Alamos National Laboratory...

  20. LOS ALAMOS, New Mexico, July 9, 2008- Los Alamos National Laboratory...

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

    venture acceleration fund July 9, 2008 LOS ALAMOS, New Mexico, July 9, 2008- Los Alamos National Laboratory is soliciting ideas for projects that facilitate the creation and growth...

  1. Strong enhancement of s -wave superconductivity near a quantum critical point of Ca<mn>3mn>Ir>4mn>Sn>13mn>

    SciTech Connect (OSTI)

    Biswas, P. K.; Guguchia, Z.; Khasanov, R.; Chinotti, M.; Li, L.; Wang, Kefeng; Petrovic, C.; Morenzoni, E.

    2015-11-11

    We report microscopic studies by muon spin rotation/relaxation as a function of pressure of the Ca<mn>3mn>Ir>4mn>Sn>13mn> and Sr3Ir4Sn13 system displaying superconductivity and a structural phase transition associated with the formation of a charge density wave (CDW). Our findings show a strong enhancement of the superfluid density and a dramatic increase of the pairing strength above a pressure of ≈ 1.6 GPa giving direct evidence of the presence of a quantum critical point separating a superconducting phase coexisting with CDW from a pure superconducting phase. The superconducting order parameter in both phases has the same s-wave symmetry. In spite of the conventional phonon-mediated BCS character of the weakly correlated (Ca1-xSrx)3Ir4Sn13 system the dependence of the effective superfluid density on the critical temperature puts this compound in the “Uemura” plot close to unconventional superconductors. This system exemplifies that conventional BCS superconductors in the presence of competing orders or multi-band structure can also display characteristics of unconventional superconductors.

  2. Algal Biology Program at Los Alamos

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

    Algal Biology Program at Los Alamos gets a star October 11, 2011 LOS ALAMOS, New Mexico, October 11, 2011-Richard Sayre, one of the nation's top specialists in algae and...

  3. Los Alamos National Lab: National Security Science

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

    more.. Charlie McMillan, Director of Los Alamos National Laboratory 1:08 Charlie McMillan, Director of Los Alamos National Laboratory, describes how the Lab provides...

  4. LOS ALAMOS NATIONAL LABORATORY COMMUNITY LEADERS SURVEY

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

    LOS ALAMOS NATIONAL LABORATORY COMMUNITY LEADERS SURVEY SEPTEMBER 2013 LOS ALAMOS NATIONAL LABORATORY-COMMUNITY LEADERS STUDY SEPTEMBER 2013 PAGE 2 RESEARCH & POLLING, INC. TABLE OF CONTENTS I. INTRODUCTION ....................................................................................................................................................................................................................................................... 3 METHODOLOGY

  5. EM Names Los Alamos Field Office Manager

    Broader source: Energy.gov [DOE]

    LOS ALAMOS, N.M. – EM announced today the selection of Douglas E. Hintze as the manager of the new EM Los Alamos (EM-LA) Field Office.

  6. Categorical Exclusion Determinations: Los Alamos Site Office...

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

    B6.1 Date: 02182015 Location(s): New Mexico Offices(s): Los Alamos Site Office ... B1.19 Date: 02092015 Location(s): New Mexico Offices(s): Los Alamos Site Office ...

  7. National Laboratory]; Chertkov, Michael [Los Alamos National...

    Office of Scientific and Technical Information (OSTI)

    Chertkov, Michael Los Alamos National Laboratory Construction and Facility Engineering; Energy Conservation, Consumption, & Utilization(32); Energy Planning, Policy, &...

  8. Independent Oversight Review, Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    Laboratory Chemistry and Metallurgy Research Facility - January 2012 Independent Oversight Review, Los Alamos National Laboratory Chemistry and Metallurgy Research Facility - ...

  9. Los Alamos exceeds waste shipping goal

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

    exceeds waste shipping goal Los Alamos exceeds waste shipping goal Los Alamos shipped more than 3,000 cubic meters of transuranic (TRU) and mixed low-level waste to the Waste Isolation Pilot Plant and other approved waste disposal facilities. July 8, 2013 A shipment carrying Los Alamos transuranic waste headed to the Waste Isolation Pilot Plant in southeastern New Mexico. A shipment carrying Los Alamos transuranic waste headed to the Waste Isolation Pilot Plant in southeastern New Mexico.

  10. NNMCAB Board Minutes: March 2003 Los Alamos

    Broader source: Energy.gov [DOE]

    Minutes of the March 19, 2003 Board meeting at Los Alamos Site Operations Review of the NNMCAB Recommendation Process

  11. Los Alamos National Laboratory names cleanup subcontractors

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

    Cleanup subcontractors named Los Alamos National Laboratory names cleanup subcontractors The three companies are Los Alamos Technical Associates (LATA), Portage Inc., and ARSEC Environmental, LLC (ARSEC). August 14, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos

  12. High-Performance Computing at Los

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

    Performance Computing at Los Alamos announces milestone for key/ value middleware May 26, 2014 Billion inserts-per-second data milestone reached for supercomputing tool LOS ALAMOS, N.M., May 29, 2014-At Los Alamos, a supercomputer epicenter where "big data set" really means something, a data middleware project has achieved a milestone for specialized information organization and storage. The Multi-dimensional Hashed Indexed Middleware (MDHIM) project at Los Alamos National Laboratory

  13. Supercomputing Challenge top winners: Los Alamos schools

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

    Supercomputing Challenge top winners: Los Alamos schools Supercomputing Challenge top winners: Los Alamos schools Cole Kendrick won the top prize for his research project, "Computer Simulation of Dark Matter Effects on Galaxy Rotation". April 26, 2011 Cole Kendrick Cole Kendrick Contact Steve Sandoval Communications Office (505) 665-9206 Email LOS ALAMOS, New Mexico, April 26, 2011-Los Alamos Middle School student Cole Kendrick won the top prize in the 21st New Mexico Supercomputing

  14. Los Alamos Critical Assemblies Facility

    SciTech Connect (OSTI)

    Malenfant, R.E.

    1981-06-01

    The Critical Assemblies Facility of the Los Alamos National Laboratory has been in existence for thirty-five years. In that period, many thousands of measurements have been made on assemblies of /sup 235/U, /sup 233/U, and /sup 239/Pu in various configurations, including the nitrate, sulfate, fluoride, carbide, and oxide chemical compositions and the solid, liquid, and gaseous states. The present complex of eleven operating machines is described, and typical applications are presented.

  15. Los Alamos National Laboratory Institutes

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

    Los Alamos National Laboratory Institutes The National Security Education Center has formed several institutes, each with a partner university or consortia of universities. The formation of these institutes serves the need for LANL to recruit new staff and provide educational opportunities that will enhance retention at the Laboratory. This is accomplished by:  Developing long-term collaborative relationships with universities whose research interests are important to the Laboratory. 

  16. Manhattan Project: Basic Research at Los Alamos, 1943-1944

    Office of Scientific and Technical Information (OSTI)

    Norris Bradbury, Robert Oppenheimer, Richard Feynman, Enrico Fermi, and others, Los Alamos, 1946 BASIC RESEARCH AT LOS ALAMOS (Los Alamos: Laboratory, 1943-1944) Events > Bringing ...

  17. Los Angeles, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    US Recovery Act Smart Grid Projects in Los Angeles, California Los Angeles Department of Water and Power Smart Grid Demonstration Project Registered Research Institutions in Los...

  18. SPIDER: A Predictive Theory For Fission White, Morgan C. [Los...

    Office of Scientific and Technical Information (OSTI)

    John P. Los Alamos National Laboratory; Moller, Peter Los Alamos National Laboratory Nuclear Physics & Radiation Physics(73) Abstract Not Provided Los Alamos National...

  19. Los Alamos Selected as Atomic Weapons Laboratory | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Los Alamos Selected as Atomic Weapons Laboratory Los Alamos, NM Groves selects Los Alamos, New Mexico, as site for separate scientific laboratory to design an atomic bomb

  20. Climate Change and the Los Alamos National Laboratory: The Adaptation...

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

    and the Los Alamos National Laboratory: The Adaptation Challenge Climate Change and the Los Alamos National Laboratory: The Adaptation Challenge The Los Alamos National Laboratory ...

  1. Voluntary Protection Program Onsite Review, Los Alamos Operations...

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

    Los Alamos Operations - November 2011 Voluntary Protection Program Onsite Review, Los Alamos Operations - November 2011 November 2011 Evaluation to determine whether Los Alamos ...

  2. Sixty-five New Mexico students receive Los Alamos Employees'...

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

    Los Alamos Employees' Scholarship Fund recipients Sixty-five New Mexico students receive Los Alamos Employees' Scholarship Fund scholarships Los Alamos High School senior Scott...

  3. Los Angeles Data Dashboard | Department of Energy

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

    Data Dashboard Los Angeles Data Dashboard The data dashboard for Los Angeles, a partner in the Better Buildings Neighborhood Program. Los Angeles Data Dashboard (309.01 KB) More Documents & Publications Austin Energy Data Dashboard Massachusetts -- SEP Data Dashboard Phoenix, Arizona Data Dashboard

  4. LOS

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

    BOE Reserve Class No 2001 reserves 0.1 - 10 MBOE 10.1 - 100 MBOE 100.1 - 1,000 MBOE 1,000.1 - 10,000 MBOE 10,000.1 - 100,000 MBOE > 100,000 MBOE Denver Basin Outline The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface

  5. Mn-Fe base and Mn-Cr-Fe base austenitic alloys

    DOE Patents [OSTI]

    Brager, Howard R.; Garner, Francis A.

    1987-01-01

    Manganese-iron base and manganese-chromium-iron base austenitic alloys designed to have resistance to neutron irradiation induced swelling and low activation have the following compositions (in weight percent): 20 to 40 Mn; up to about 15 Cr; about 0.4 to about 3.0 Si; an austenite stabilizing element selected from C and N, alone or in combination with each other, and in an amount effective to substantially stabilize the austenite phase, but less than about 0.7 C, and less than about 0.3 N; up to about 2.5 V; up to about 0.1 P; up to about 0.01 B; up to about 3.0 Al; up to about 0.5 Ni; up to about 2.0 W; up to about 1.0 Ti; up to about 1.0 Ta; and with the remainder of the alloy being essentially iron.

  6. Structure and magnetic properties of LnMnSbO ( Ln=La and Ce)

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

    Zhang, Qiang; Kumar, C. M. N.; Tian, Wei; Dennis, Kevin W.; Goldman, Alan I.; Vaknin, David

    2016-03-11

    Here, a neutron powder diffraction (NPD) study of LnMnSbO (Ln = La or Ce) reveals differences between the magnetic ground state of the two compounds due to the strong Ce-Mn coupling compared to La-Mn. The two compounds adopt the P4/nmm space group down to 2 K, and whereas magnetization measurements do not show obvious anomaly at high temperatures, NPD reveals a C-type antiferromagnetic (AFM) order below TN = 255K for LaMnSbO and 240 K for CeMnSbO. While the magnetic structure of LaMnSbO is preserved to base temperature, a sharp transition at TSR = 4.5K is observed in CeMnSbO due tomore » a spin-reorientation (SR) transition of the Mn2+ magnetic moments from pointing along the c axis to the ab plane. The SR transition in CeMnSbO is accompanied by a simultaneous long-range AFM ordering of the Ce moments, which indicates that the Mn SR transition is driven by the Ce-Mn coupling. The ordered moments are found to be somewhat smaller than those expected for Mn2+ (S = 5/2) in insulators, but large enough to suggest that these compounds belong to the class of local-moment antiferromagnets. The lower TN found in these two compounds compared to the As-based counterparts (TN = 317 for LaMnAsO, TN = 347K for CeMnAsO) indicates that the Mn-Pn (Pn=As or Sb) hybridization that mediates the superexchange Mn-Pn-Mn coupling is weaker for the Sb-based compounds.« less

  7. Revealing the Restructured Surface of Li[Mn2]O4

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

    Amos, Charles D.; Roldan, Manuel A.; Varela, Maria; Goodenough, John B.; Ferreira, Paulo J.

    2016-03-29

    The spinel Revealing the Restructured Surface of Li[Mn2]O4 is a candidate cathode for a Li-ion battery, but its capacity fades over a charge/discharge cycle of Li1–x[Mn2]O4 (0 < x < 1) that is associated with a loss of Mn to the organic-liquid electrolyte. It is known that the disproportionation reaction 2Mn3+ = Mn2+ + Mn4+ occurs at the surface of a Mn spinel, and it is important to understand the atomic structure and composition of the surface of Revealing the Restructured Surface of Li[Mn2]O4 in order to understand how Mn loss occurs. We report a study of the surface reconstructionmore » of Revealing the Restructured Surface of Li[Mn2]O4 by aberration-corrected scanning transmission electron microscopy. The atomic structure coupled with Mn-valence and the distribution of the atomic ratio of oxygen obtained by electron energy loss spectroscopy reveals a thin, stable surface layer of Mn3O4, a subsurface region of Li1+x[Mn2]O4 with retention of bulk Li[Mn2]O4. We conclude that this observation is compatible with the disproportionation reaction coupled with oxygen deficiency and a displacement of surface Li+ from the Mn3O4 surface phase. These results provide a critical step toward understanding how Mn is lost from Li[Mn2]O4, once inside a battery.« less

  8. Synthesis, characterization and electrochemical performance of Al-substituted Li₂MnO₃

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

    Dhital, Chetan; Huq, Ashfia; Paranthaman, Mariappan Parans; Manivannan, Ayyakkannu; Torres-Castro, Loraine; Shojan, Jifi; Julien, Christian M.; Katiyar, Ram S.

    2015-08-08

    Li2MnO3 is known to be electrochemically inactive due to Mn in tetravalent oxidation state. Several compositions such as Li2MnO3 , Li1.5Al0.17MnO3, Li1.0Al0.33MnO3 and Li0.5Al0.5MnO3 were synthesized by a sol–gel Pechini method. All the samples were characterized with x-ray diffraction, Raman, x-ray photoelectron spectroscopy, scanning electron microscopy, Tap density and BET analyzer. X-ray diffraction patterns indicated the presence of monoclinic phase for pristine Li2MnO3and mixed monoclinic/spinel phases (Li2 - xMn1 - yAlx + yO3 + z) for Al-substituted Li2MnO3compounds. The Al substitution seems to occur both at Li and Mn sites, which could explain the presence of spinel phase. X-ray photoelectronmore » spectroscopy for Mn 2p orbital reveals a significant decrease in binding energy for Li1.0Al0.33MnO3 and Li0.5Al0.5MnO3 compounds. Cyclic voltammetry, charge/discharge cycles and electrochemical impedance spectroscopy were also performed. A discharge capacity of 24 mAh g-1 for Li2MnO3, 68 mAh g-1 for Li1.5Al0.17MnO3, 58 mAh g-1 for Li1.0Al0.33MnO3 and 74 mAh g-1 for Li0.5Al0.5MnO3 were obtained. As a result, aluminum substitutions increased the formation of spinel phase which is responsible for cycling.« less

  9. Resonant spin tunneling in randomly oriented nanospheres of Mn?? acetate

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

    Lendinez, S.; Billinge, S. J. L.; Zarzuela, R.; Tejada, J.; Terban, M. W.; Espin, J.; Imaz, I.; Maspoch, D.; Chudnovsky, E. M.

    2015-01-06

    We report measurements and theoretical analysis of resonant spin tunneling in randomly oriented nanospheres of a molecular magnet. Amorphous nanospheres of Mn?? acetate have been fabricated and characterized by chemical, infrared, TEM, X-ray, and magnetic methods. Magnetic measurements have revealed sharp tunneling peaks in the field derivative of the magnetization that occur at the typical resonant field values for the Mn?? acetate crystal in the field parallel to the easy axis.Theoretical analysis is provided that explains these observations. We argue that resonant spin tunneling in a molecular magnet can be established in a powder sample, without the need for amoresingle crystal and without aligning the easy magnetization axes of the molecules. This is confirmed by re-analyzing the old data on a powdered sample of non-oriented micron-size crystals of Mn?? acetate. Our findings can greatly simplify the selection of candidates for quantum spin tunneling among newly synthesized molecular magnets.less

  10. Stress induced anisotropy in CoFeMn soft magnetic nanocomposites...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Stress induced anisotropy in CoFeMn soft magnetic nanocomposites Citation Details In-Document Search Title: Stress induced anisotropy in CoFeMn soft magnetic ...

  11. Pulsed laser deposition of Mn doped CdSe quantum dots for improved solar cell performance

    SciTech Connect (OSTI)

    Dai, Qilin; Wang, Wenyong E-mail: jtang2@uwyo.edu; Tang, Jinke E-mail: jtang2@uwyo.edu; Sabio, Erwin M.

    2014-05-05

    In this work, we demonstrate (1) a facile method to prepare Mn doped CdSe quantum dots (QDs) on Zn{sub 2}SnO{sub 4} photoanodes by pulsed laser deposition and (2) improved device performance of quantum dot sensitized solar cells of the Mn doped QDs (CdSe:Mn) compared to the undoped QDs (CdSe). The band diagram of photoanode Zn{sub 2}SnO{sub 4} and sensitizer CdSe:Mn QD is proposed based on the incident-photon-to-electron conversion efficiency (IPCE) data. Mn-modified band structure leads to absorption at longer wavelengths than the undoped CdSe QDs, which is due to the exchange splitting of the CdSe:Mn conduction band by the Mn dopant. Three-fold increase in the IPCE efficiency has also been observed for the Mn doped samples.

  12. Pulsed laser deposition of Mn doped CdSe quantum dots for improved...

    Office of Scientific and Technical Information (OSTI)

    Pulsed laser deposition of Mn doped CdSe quantum dots for improved solar cell performance Citation Details In-Document Search Title: Pulsed laser deposition of Mn doped CdSe ...

  13. Coexistence of charge-density wave and ferromagnetism in Ni2MnGa...

    Office of Scientific and Technical Information (OSTI)

    Coexistence of charge-density wave and ferromagnetism in Ni2MnGa Citation Details In-Document Search Title: Coexistence of charge-density wave and ferromagnetism in Ni2MnGa ...

  14. SNL Los Alamos National Laboratory | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration SNL Los Alamos National Laboratory

  15. Los Alamos Field Office | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Los Alamos Field Office FY15 Year End Report

  16. Mixing antiferromagnets to tune NiFe-[IrMn/FeMn] interfacial spin-glasses, grains thermal stability, and related exchange bias properties

    SciTech Connect (OSTI)

    Akmaldinov, K.; Ducruet, C.; Portemont, C.; Joumard, I.; Prejbeanu, I. L.; Dieny, B.; Baltz, V.

    2014-05-07

    Spintronics devices and in particular thermally assisted magnetic random access memories require a wide range of ferromagnetic/antiferromagnetic (F/AF) exchange bias (EB) properties and subsequently of AF materials to fulfil diverse functionality requirements for the reference and storage. For the reference layer, large EB energies and high blocking temperature (T{sub B}) are required. In contrast, for the storage layer, mostly moderate T{sub B} are needed. One of the present issues is to find a storage layer with properties intermediate between those of IrMn and FeMn and in particular: (i) with a T{sub B} larger than FeMn for better stability at rest-T but lower than IrMn to reduce power consumption at write-T and (ii) with improved magnetic interfacial quality, i.e., with reduced interfacial glassy character for lower properties dispersions. To address this issue, the EB properties of F/AF based stacks were studied for various mixed [IrMn/FeMn] AFs. In addition to EB loop shifts, the F/AF magnetic interfacial qualities and the AF grains thermal stability are probed via measurements of the low- and high-temperature contributions to the T{sub B} distributions, respectively. A tuning of the above three parameters is observed when evolving from IrMn to FeMn via [IrMn/FeMn] repetitions.

  17. Enforcement Letter, Los Alamos National Laboratory- October 9, 2001

    Broader source: Energy.gov [DOE]

    Issued to Los Alamos National Laboratory related to Quality Assurance Provisions at the Los Alamos Critical Experiments Facility

  18. Voluntary Protection Program Onsite Review, Los Alamos National Security,

    Office of Environmental Management (EM)

    Llc Los Alamos National Laboratory, Los Alamos, New Mexico - April 2014 | Department of Energy Llc Los Alamos National Laboratory, Los Alamos, New Mexico - April 2014 Voluntary Protection Program Onsite Review, Los Alamos National Security, Llc Los Alamos National Laboratory, Los Alamos, New Mexico - April 2014 April 2014 Annual Merit Review of LANS at Los Alamos National Laboratory for continued participation in the Department of Energy Voluntary Protection Program. This report presents the

  19. Epitaxial Growth of Intermetallic MnPt Films on Oxides and Large Exchange Bias

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

    Liu, Zhiqi; Biegalski, Michael D.; Hsu, Shang-Lin; Shang, Shunli; Marker, Cassie; Liu, Jian; Li, Li; Fan, Lisha S.; Meyer, Tricia L.; Wong, Anthony T.; et al

    2015-11-05

    High-quality epitaxial growth of intermetallic MnPt films on oxides is achieved, with potential for multiferroic heterostructure applications. Antisite-stabilized spin-flipping induces ferromagnetism in MnPt films, although it is robustly antiferromagnetic in bulk. Moreover, highly ordered antiferromagnetic MnPt films exhibit superiorly large exchange coupling with a ferromagnetic layer.

  20. Epitaxial growth of intermetallic MnPt films on oxides and large exchange bias

    SciTech Connect (OSTI)

    Liu, Zhiqi; Biegalski, Michael D.; Hsu, Shang-Lin; Shang, Shunli; Marker, Cassie; Liu, Jian; Li, Li; Fan, Lisha S.; Meyer, Tricia L.; Wong, Anthony T.; Nichols, John A.; Chen, Deyang; You, Long; Chen, Zuhuang; Wang, Kai; Wang, Kevin; Ward, Thomas Z.; Gai, Zheng; Lee, Ho Nyung; Sefat, Athena S.; Lauter, Valeria; Liu, Zi-kui; Christen, Hans M.

    2015-11-05

    High-quality epitaxial growth of intermetallic MnPt films on oxides is achieved, with potential for multiferroic heterostructure applications. Antisite-stabilized spin-flipping induces ferromagnetism in MnPt films, although it is robustly antiferromagnetic in bulk. Thus, highly ordered antiferromagnetic MnPt films exhibit superiorly large exchange coupling with a ferromagnetic layer.

  1. Cationic disorder and Mn{sup 3+}/Mn{sup 4+} charge ordering in the B? and B? sites of Ca{sub 3}Mn{sub 2}NbO{sub 9} perovskite: a comparison with Ca{sub 3}Mn{sub 2}WO{sub 9}

    SciTech Connect (OSTI)

    Lpez, C.A.; Saleta, M.E.; Pedregosa, J.C.; Snchez, R.D.; Alonso, J.A.; and others

    2014-02-15

    We describe the preparation, crystal structure determination, magnetic and transport properties of two novel Mn-containing perovskites, with a different electronic configuration for Mn atoms located in B site. Ca{sub 3}Mn{sup 3+}{sub 2}WO{sub 9} and Ca{sub 3}Mn{sup 3+/4+}{sub 2}NbO{sub 9} were synthesized by standard ceramic procedures; the crystallographic structure was studied from X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD). Both phases exhibit a monoclinic symmetry (S.G.: P2{sub 1}/n); Ca{sub 3}Mn{sub 2}WO{sub 9} presents a long-range ordering over the B sites, whereas Ca{sub 3}Mn{sub 2}NbO{sub 9} is strongly disordered. By in-situ NPD, the temperature evolution of the structure study presents an interesting evolution in the octahedral size (?MnO?) for Ca{sub 3}Mn{sub 2}NbO{sub 9}, driven by a charge ordering effect between Mn{sup 3+} and Mn{sup 4+} atoms, related to the anomaly observed in the transport measurements at T?160 K. Both materials present a magnetic order below T{sub C}=30 K and 40 K for W and Nb materials, respectively. The magneto-transport measurements display non-negligible magnetoresistance properties in the paramagnetic regime. - Graphical abstract: Comparison between the octahedron size and the magnetic behaviour for Ca{sub 3}Mn{sub 2}NbO{sub 9} in the temperature region where the charge and magnetic order occur. Display Omitted - Highlights: Two novel Mn-containing double perovskites were obtained by solid-state reactions. Both double perovskites are monoclinic (P2{sub 1}/n) determined by XRPD and NPD. Ca{sub 3}Mn{sub 2}WO{sub 9} contains Mn{sup 3+} while Ca{sub 3}Mn{sub 2}NbO{sub 9} includes mixed-valence cations Mn{sup 3+}/Mn{sup 4+}. Ca{sub 3}Mn{sub 2}NbO{sub 9} presents a charge-ordering effect between Mn{sup 3+} and Mn{sup 4+} evidenced by NPD. The magnetic and transport studies evidenced the charge ordering in Ca{sub 3}Mn{sub 2}NbO{sub 9}.

  2. Neutron scattering study of spin ordering and stripe pinning in superconducting La<mn>1.93mn>Sr>0.07mn>CuO>4mn>

    SciTech Connect (OSTI)

    Jacobsen, H.; Zaliznyak, I. A.; Savici, A. T.; Winn, B. L.; Chang, S.; Hücker, M.; Gu, G. D.; Tranquada, J. M.

    2015-11-20

    The relationships among charge order, spin fluctuations, and superconductivity in underdoped cuprates remain controversial. We use neutron scattering techniques to study these phenomena in La<mn>1.93mn>Sr>0.07mn>CuO>4mn> a superconductor with a transition temperature of Tc = 20 K. At T<< Tc, we find incommensurate spin fluctuations with a quasielastic energy spectrum and no sign of a gap within the energy range from 0.2 to 15 meV. A weak elastic magnetic component grows below ~ 10 K, consistent with results from local probes. Regarding the atomic lattice, we have discovered unexpectedly strong fluctuations of the CuO6 octahedra about Cu-O bonds, which are associated with inequivalent O sites within the CuO2 planes. Moreover, we observed a weak elastic (3 30) superlattice peak that implies a reduced lattice symmetry. The presence of inequivalent O sites rationalizes various pieces of evidence for charge stripe order in underdoped La2-xSrxCuO4. The coexistence of superconductivity with quasi-static spin-stripe order suggests the presence of intertwined orders; however, the rotation of the stripe orientation away from the Cu-O bonds might be connected with evidence for a finite gap at the nodal points of the superconducting gap function.

  3. Clarification of enhanced ferromagnetism in Be-codoped InMnP fabricated using Mn/InP:Be bilayers grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Shon, Yoon; Lee, Sejoon; Taek Yoon, Im; Jeon, H. C.; Lee, D. J.; Kang, T. W.; Song, J. D.; Yoon, Chong S.; Kim, D. Y.; Park, C. S.

    2011-11-07

    The p-type InMnP:Be epilayers were prepared by the sequential growth of Mn/InP:Be bilayers using molecular-beam-epitaxy and the subsequent in-situ annealing at 200-300 deg. C. In triple-axis x-ray diffraction patterns, the samples revealed a shoulder peak indicative of intrinsic InMnP. The ferromagnetic transition in InMnP:Be was observed to occur at the elevated temperature of {approx}140 K, and the ferromagnetic spin-domains clearly appeared in magnetic force microscopy images. The improved ferromagnetic properties are attributed to the increased p-d hybridation due to high p-type conductivity of InMnP:Be (p {approx} 10{sup 20 }cm{sup -3}). The results suggest that enhanced ferromagnetism can be effectively obtained from Be-codoped InMnP.

  4. Magnetic properties of α−MnO{sub 2} and Co-doped α−MnO{sub 2} nanowires

    SciTech Connect (OSTI)

    Stella, C. Soundararajan, N. Ramachandran, K.

    2014-04-24

    α−MnO{sub 2} and Co-doped α−MnO{sub 2} nanowires (NWs) were synthesized by hydrothermal method. The structural characterization by XRD revealed the tetragonal structure of α−MnO{sub 2}. The formation of one dimensional (1D) NWs of pure and Co-doped α−MnO{sub 2} was confirmed from SEM. From UV-Vis absorption spectra, it is found that both pure and Co-doped α−MnO{sub 2} NWs showed blue shift compared to bulk, which revealed the quantum confinement in the synthesized samples. The magnetic properties were analyzed by VSM, which suggest that pure and doped α−MnO{sub 2} exhibit ferromagnetic behavior at room temperature (RT)

  5. Los Alamos plants willows for flood recovery

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

    plants willows Los Alamos plants willows for flood recovery The Laboratory's Corrective Actions Program (CAP) planted nearly 10,000 willows to help preserve the Pueblo Canyon wetland after damage from September 2013 floods. June 18, 2014 In a flood recovery effort designed to stop further erosion in Pueblo Canyon, in April, Los Alamos planted nearly 10,000 willows along the stream banks surrounding the wetland. In a flood recovery effort designed to stop further erosion in Pueblo Canyon, Los

  6. Los Alamos scientists advance biomass fuel production

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

    Los Alamos scientists advance biomass fuel production Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Los Alamos scientists advance biomass fuel production Adapting biomass waste molecules for energy production May 1, 2013 Lab research can yield energy from non-food biomass Lab research can yield energy from non-food biomass Contact Editor Linda Anderman Email Community Programs Office

  7. A different Big Bang theory: Los Alamos

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

    different Big Bang theory: Los Alamos unveils explosives detection expertise February 11, 2015 Collaboration project defeats explosives threats through enhanced detection technologies LOS ALAMOS, N.M., Feb. 11, 2015-Having long kept details of its explosives capabilities under wraps, a team of Los Alamos National Laboratory scientists is now rolling out a collaborative project to defeat explosives threats through enhanced detection technologies. "We're aiming to create a collaboration of

  8. SUMMARY Los Alamos National Laboratory Collaboration for

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

    DOE/NNSA // LA-UR-14-29443 // Pg. 1 SUMMARY Los Alamos National Laboratory Collaboration for Explosives Detection (LACED) is a virtual gateway to world-class expertise and capabilities that counter all aspects of explosive threats, predominantly through enhanced detection capabilities. Los Alamos National Laboratory (Los Alamos) has been a driving force in explosives science since its inception in 1943. The efforts to build the first nuclear weapons created exquisite requirements for high

  9. Los Alamos National Security supports community nonprofits

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

    LANS supports community nonprofits Los Alamos National Security supports community nonprofits Nonprofit organizations are receiving more than $80,300 as a result of the volunteer efforts of LANL employees and retirees. June 1, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los

  10. Los Alamos director echoes cyber concerns

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

    Los Alamos director echoes cyber concerns Los Alamos director echoes cyber concerns Director Charlie McMillan told a gathering of energy executives that securing the electrical grid is a major concern now and it's only becoming more serious. May 21, 2013 Los Alamos National Laboratory Director Charlie McMillan (right), with, from left, Anthony Cugini of the National Energy Technology Laboratory, Thom Mason of Oak Ridge National Laboratory, and Tomas Diaz de la Rubia of Deloitte Consulting LLP.

  11. Los Alamos imager aboard IBEX space mission

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

    Imager aboard IBEX space mission Los Alamos imager aboard IBEX space mission This is the first in a new series of talks that will focus on the emerging scientific field of quantitative biology. October 17, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National

  12. Los Alamos researchers create 'map of science'

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

    Map of science Los Alamos researchers create 'Map of Science' A high-resolution graphic depiction of the virtual trails scientists leave behind when they retrieve information from online services. March 11, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National

  13. Reliability Technology earns prestigious Los Alamos Award

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

    Reliability Technology earns prestigious Los Alamos Award Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Reliability Technology earns prestigious Los Alamos Award Technology transferred to Procter & Gamble basis for first-ever Feynman Prize September 1, 2013 Feynman Prize winners Michael Hamada, center, and Harry Martz, second from left, hold their Feynman Prizes during a recent

  14. Seven Los Alamos scientists earn AAAS honors

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

    Seven Los Alamos scientists earn AAAS honors Seven Los Alamos scientists earn AAAS honors The Fellows are Richard Sayre, John Gordon, Jeanne Robinson, Jaqueline Kiplinger, Bryon Goldstein, Alexander Balatsky and Quanxi Jia. December 15, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new

  15. National Nuclear Security Administration Los Alamos National

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration Los Alamos National Security, LLC Fiscal Year 2014 Performance Evaluation Report (PER) NNSA Los Alamos Field Office Performance Period: October 2013 - September 2014 November 14, 2014 NA-LA November 14, 2014 Executive Summary This Performance Evaluation Report (PER) provides the assessment of Los Alamos National Security, LLC performance for the period of October 1, 2013 through September 30, 2014, as evaluated against the objectives defined in the Fiscal

  16. Role of t{sub 2g} electrons in Mn-Tb coupling of multiferroic TbMnO{sub 3}

    SciTech Connect (OSTI)

    Guo, Y. Y.; Wang, Y. L.; Liu, J.-M.; Wei, T.

    2014-08-14

    We investigate the effect of Cr-doping in polycrystalline TbMn{sub 1?x}Cr{sub x}O{sub 3} (x???6%) ceramics on the magnetism, ferroelectricity, and dielectricity. The Cr substitution gradually suppresses the ferroelectricity induced by the Mn spiral spin ordering, and results in a stronger modulation of polarization by magnetic field with increasing x. However, the transition temperature T{sub Tb} corresponding to onset of Tb magnetic ordering has barely shifted with Cr doping. In other words, although the Cr-doping obviously disrupts the Mn spiral spin ordering, the exchange field J{sub Mn-Tb} acting on the Tb moments from the Mn-spin structure is hardly impacted. Our work demonstrates that the e{sub g} electron of Mn{sup 3+} plays an important role in forming the Mn spiral spin order, but the f-d exchange interaction between the Mn 3d spins and the Tb 4f moments in multiferroic TbMnO{sub 3} almost involves only the t{sub 2g} electrons.

  17. Effect of Mn substitution on the transport properties of co-sputtered Fe{sub 3−x}Mn{sub x}Si epilayers

    SciTech Connect (OSTI)

    Tang, M.; Jin, C.; Bai, H. L.

    2014-11-07

    Motivated by the theoretical calculations that Fe{sub 3−x}Mn{sub x}Si can simultaneously exhibit a high spin polarization with a high Curie temperature to be applied in spintronic devices, and in order to further study the effect of Mn contents on the physical properties of Fe{sub 3−x}Mn{sub x}Si, we have investigated the effect of Mn substitution on the transport properties of epitaxial Fe{sub 3−x}Mn{sub x}Si (0≤x≤1) films systematically. The Fe{sub 3−x}Mn{sub x}Si films were epitaxially grown on MgO(001) plane with 45° rotation. The magnetization for various x shows enhanced irreversibility, implying the antiferromagnetic ordering induced by the substitution of Mn. A metal-semiconductor crossover was observed due to the enhanced disorders of interactions and the local lowering of symmetry induced by the substitution of Mn. The single-domain state in the Fe{sub 3−x}Mn{sub x}Si films leads to twofold symmetric curves of the anisotropic magnetoresistance and planar Hall resistivity.

  18. Now and Then at Los Alamos

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

    Now and Then at Los Alamos Now and Then at Los Alamos In 2013, the Laboratory celebrated its 70th anniversary. This feature provides, in image format, highlights of our 70 years of science for national security, now and then. 13 Then In the 1940s, people working at the Manhattan Project in Los Alamos had to enter through the Los Alamos Project Main Gate, where guards checked passes that allowed access to the mesa. Now Built in 2006, the 275,000 square-foot National Security Sciences Building

  19. Dateline Los Alamos: Top Science News

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

    ... demonstration of securing control data for electric grids using quantum cryptography. ... Los Alamos has successfully developed a system of smart telescopes that scan the skies for ...

  20. NNMCAB Board Minutes: March 2002 Los Alamos

    Broader source: Energy.gov [DOE]

    Minutes of the March 27, 2002 Board meeting at Los Alamos Site Operations Presentation LANL, Overlook of Ecological Risk Assessment, Rich Mirenda

  1. NNMCAB Board Minutes: July 2011 Los Alamos

    Broader source: Energy.gov [DOE]

    Minutes of the July 27, 2011 Board meeting at Holiday Inn Presentation LANL, Los Conchas Fire, Dave McInroy Presentation DOE, Waste Isolation Pilot Plant, John Heaton

  2. Supercomputing Challenge top winners: Los Alamos schools

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

    the Challenge Process Special Judges Award for their project "Contributing Factors to Obesity, Part 2." Los Alamos Middle School team members Madeline Lockhart, Sean Reynolds, and...

  3. Los Alamos National Laboratory | Open Energy Information

    Open Energy Info (EERE)

    responsibility "is ensuring the safety, security, and reliability of the nation's nuclear deterrent."2 References Los Alamos Lab: Contacts About Us (LANL) Retrieved...

  4. Independent Activity Report, Los Alamos National Laboratory ...

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

    July 2012 Independent Activity Report, Los Alamos National Laboratory - July 2012 July 2012 Initial Meeting of Representatives from LANL, LASO, and HS-45 To Review Progress and...

  5. Independent Activity Report, Los Alamos National Laboratory ...

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

    August 2012 Independent Activity Report, Los Alamos National Laboratory - August 2012 August 2012 Defense Nuclear Facilities Safety Board Visit and Site Lead Planning Activities...

  6. Los Alamos Space Weather Summer School

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

    Mentors, Projects Lectures Papers, Reports Photos NSEC CSES Space Weather Summer School Los Alamos Space Weather Summer School June 6 - July 29, 2016 Contacts Director Misa ...

  7. LOS ALAMOS NATIONAL LABORATORY COMMUNITY LEADERS STUDY

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

    ALAMOS NATIONAL LABORATORY COMMUNITY LEADERS STUDY OCTOBER 2014 LOS ALAMOS NATIONAL LABORATORY-COMMUNITY LEADERS STUDY OCTOBER 2014 PAGE 2 TABLE OF CONTENTS I. INTRODUCTION ..................................................................................................................................................................................................... 3 METHODOLOGY

  8. Los Alamos Science in the News

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

    News Los Alamos Science in the News Read about what other news sources are saying about Los Alamos science achievements. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Los Alamos to investigate solar dangers to the power grid Los Alamos to investigate solar dangers to the power grid LANL launches a new investigation of how solar events could affect a grid like a long string of Christmas lights-increasingly long and susceptible to a cascade of

  9. Los Alamos in the News - 2016

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

    Los Alamos in the News - 2016 Read about what other news sources are saying about Los Alamos science achievements. Los Alamos to investigate solar dangers to the power grid Los Alamos to investigate solar dangers to the power grid LANL launches a new investigation of how solar events could affect a grid like a long string of Christmas lights-increasingly long and susceptible to a cascade of problems. - 8/22/16 Cube sats iin space. Tiny satellites: latest innovation hedgefunds are using The

  10. A different Big Bang theory: Los Alamos

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

    different Big Bang theory: Los Alamos unveils explosives detection expertise February 11, 2015 Collaboration project defeats explosives threats through enhanced detection...

  11. Dateline Los Alamos: Top Science News

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

    Science News of 2014 December 22, 2014 Dateline Los Alamos: Top Science News of 2014 Biosurveillance, secure computing, alternative energy, unique capabilities highlight the year....

  12. Independent Oversight Review, Los Alamos National Laboratory...

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

    of Health, Safety and Security (HSS), conducted an independent review of the Los Alamos National Laboratory (LANL) Weapons Engineering Tritium Facility (WETF) safety significant...

  13. Enterprise Assessments Review, Los Alamos National Laboratory...

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

    Los Alamos National Laboratory Weapons Engineering Tritium Facility Fire Suppression ... HSS conducted an independent oversight review of the Weapons Engineering Tritium Facility ...

  14. Enterprise Assessments Review, Los Alamos National Laboratory...

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

    November 2014 Review of the Fire Protection Program at the Los Alamos National Laboratory The Department of Energy Office of Enterprise Assessments was established in May 2014 and...

  15. Reliability Technology earns prestigious Los Alamos award

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

    Reliability Technology earns award Reliability Technology earns prestigious Los Alamos award LANL has honored Michael Hamada, Harry Martz and a team of researchers with its first ...

  16. Plutonium Oxidation and Subsequent Reduction by Mn (IV) Minerals

    SciTech Connect (OSTI)

    KAPLAN, DANIEL

    2005-09-13

    Plutonium sorbed to rock tuff was preferentially associated with manganese oxides. On tuff and synthetic pyrolusite (Mn{sup IV}O{sub 2}), Pu(IV) or Pu(V) was initially oxidized, but over time Pu(IV) became the predominant oxidation state of sorbed Pu. Reduction of Pu(V/VI), even on non-oxidizing surfaces, is proposed to result from a lower Gibbs free energy of the hydrolyzed Pu(IV) surface species versus that of the Pu(V) or Pu(VI) surface species. This work suggests that despite initial oxidation of sorbed Pu by oxidizing surfaces to more soluble forms, the less mobile form of Pu, Pu(IV), will dominate Pu solid phase speciation during long term geologic storage. The safe design of a radioactive waste or spent nuclear fuel geologic repository requires a risk assessment of radionuclides that may potentially be released into the surrounding environment. Geochemical knowledge of the radionuclide and the surrounding environment is required for predicting subsurface fate and transport. Although difficult even in simple systems, this task grows increasingly complicated for constituents, like Pu, that exhibit complex environmental chemistries. The environmental behavior of Pu can be influenced by complexation, precipitation, adsorption, colloid formation, and oxidation/reduction (redox) reactions (1-3). To predict the environmental mobility of Pu, the most important of these factors is Pu oxidation state. This is because Pu(IV) is generally 2 to 3 orders of magnitude less mobile than Pu(V) in most environments (4). Further complicating matters, Pu commonly exists simultaneously in several oxidation states (5, 6). Choppin (7) reported Pu may exist as Pu(IV), Pu(V), or Pu(VI) oxic natural groundwaters. It is generally accepted that plutonium associated with suspended particulate matter is predominantly Pu(IV) (8-10), whereas Pu in the aqueous phase is predominantly Pu(V) (2, 11-13). The influence of the character of Mn-containing minerals expected to be found in subsurface

  17. Relation between the magnetization and the electrical properties of alloy GaSb-MnSb films

    SciTech Connect (OSTI)

    Koplak, O. V.; Polyakov, A. A.; Davydov, A. B.; Morgunov, R. B.; Talantsev, A. D.; Kochura, A. V.; Fedorchenko, I. V.; Novodvorskii, O. A.; Parshina, L. S.; Khramova, O. D.; Shorokhova, A. V.; Aronzon, B. A.

    2015-06-15

    The influence of the charge carrier concentration on the magnetic properties of GaSb-MnSb alloys is studied. The ferromagnetism of GaSb-MnSb films is caused by the presence of MnSb granules and manifests itself in both magnetometric measurements and the presence of an anisotropic magnetoresistance and the anomalous Hall effect. Electric conduction is executed by charge carriers (holes) in a GaSb matrix. The magnetization of clusters depends on stoichiometry and the concentration of Mn{sup 2+} and Mn{sup 3+} ions, which is specified by the film growth conditions. At high film growth temperatures, ferromagnetic clusters containing Mn{sup 2+} ions mainly form. At low growth temperatures, an antiferromagnetic phase containing Mn{sup 3+} ions forms.

  18. Tritium concentrations in bees and honey at Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Fresquez, P.R.; Armstrong, D.R.; Salazar, J.G.

    1994-12-01

    Los Alamos National Laboratory (LANL) has maintained a network of honey bee colonies at LANL, perimeter (Los Alamos townsite and White Rock/Pajarito Acres) and regional (background) areas for over 15 years; the main objective of this honey bee network was to help determine the bioavailability of certain radionuclides in the environment. Of all the radionuclides studied ({sup 3}H, {sup 57}Co, {sup 7}Be, {sup 22}Na, {sup 54}Mn, {sup 83}Rb, {sup 137}Cs, {sup 238}Pu, {sup 239}Pu, {sup 90}Sr and total U), tritium was consistently detected in bees and was most readily transferred to the honey. In fact, honey collected from hives located at TA-21, TA-33, TA-50, TA-53, and TA-54 and from White Rock/Pajarito Acres contained significantly higher concentrations of {sup 3}H than regional background hives. Based on the average concentration of all radionuclides measured over the years, the effective dose equivalent (EDE) from consuming 5 kg (11 lb) of honey collected from Los Alamos (townsite) and White Rock/Pajarito Acres, after regional background has been subtracted, was 0.0186 ({+-}0.0507) and 0.0016 ({+-}0.0010) mrem/yr, respectively. The highest EDE, based on the mean + 2SD (95% confidence level), was 0.1200 mrem/y; this was <0.2% of the International Commission on Radiological Protection permissible dose limit of 100 mrem/yr from all pathways.

  19. EIS-0238: Continued Operation of the Los Alamos National Laboratory, Los Alamos, New Mexico

    Broader source: Energy.gov [DOE]

    This EIS evaluates the potential environmental impacts of a proposal to continue operating the Los Alamos National Laboratory (LANL) located in Los Alamos County, in north-central New Mexico. DOE...

  20. EA-1156: Effluent Reduction Los Alamos National Laboratory, Los Alamos, New Mexico

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposal to eliminate industrial effluent from 27 outfalls at the U.S. Department of Energy Los Alamos National Laboratory in Los Alamos, New...

  1. LOS ALAMOS, New Mexico, June 4, 2013-Los Alamos National Laboratory...

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    catalyst could jumpstart e- cars, green energy June 4, 2013 Economical non-precious-metal catalyst capitalizes on carbon nanotubes LOS ALAMOS, New Mexico, June 4, 2013-Los Alamos...

  2. LOS ALAMOS, NEW MEXICO, July 17, 2012-Two Los Alamos National...

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

    July 17, 2012 Los Alamos scientists among Duke-led consortium LOS ALAMOS, NEW MEXICO, July ... vaccines against HIV.The Duke University-led consortium will largely concentrate on ...

  3. LOS ALAMOS, N.M., June 4, 2013-Los Alamos National Laboratory...

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    laser-driven neutrons to stop nuclear smugglers June 4, 2013 Los Alamos shows first nuclear material detection by single short-pulse-laser-driven neutron source LOS ALAMOS, N.M., ...

  4. LOS ALAMOS, New Mexico, May 18, 2011-Los Alamos National Laboratory...

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

    made this award happen."The Laboratory plans a volunteer recognition event June 22 at Fuller Lodge in downtown Los Alamos to recognize employee and retiree volunteers. Los Alamos...

  5. LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory

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

    Domestic production of medical isotope Mo-99 moves a step closer May 13, 2013 Los Alamos team produces molybdenum-99 from irradiation of low enriched uranium solution LOS ALAMOS, ...

  6. LOS ALAMOS, New Mexico, March 29, 2012-Los Alamos National Laboratory...

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

    March 29, 2012 Subcontract worth up to 250 million over five years LOS ALAMOS, New Mexico, March 29, 2012-Los Alamos National Laboratory has awarded a master task order...

  7. LOS ALAMOS, New Mexico, June 4, 2013-Los Alamos National Laboratory...

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

    catalyst could jumpstart e- cars, green energy June 4, 2013 Economical non-precious-metal catalyst capitalizes on carbon nanotubes LOS ALAMOS, New Mexico, June 4, 2013-Los Alamos ...

  8. LOS ALAMOS, N.M., July 1, 2014-Los Alamos National Laboratory employees

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

    27,000 pledged by Los Alamos National Laboratory employees in 2014 LAESF scholarship drive July 1, 2014 Investing in success of Northern New Mexico students LOS ALAMOS, N.M., July 1, 2014-Los Alamos National Laboratory employees pledged a record $327,000 during the recently completed 2014 Los Alamos Employees' Scholarship Fund (LAESF) drive. The drive encourages Laboratory employees, retirees, and subcontract personnel to donate to a fund that awards college scholarships to Northern New Mexico

  9. LOS ALAMOS, N.M., June 18, 2014-Los Alamos National Laboratory today

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

    Fukushima with cosmic rays should speed cleanup June 18, 2014 Los Alamos to partner with Toshiba to remotely and safely peer inside nuclear reactors LOS ALAMOS, N.M., June 18, 2014-Los Alamos National Laboratory today announced an impending partnership with Toshiba Corporation to use a Los Alamos technique called muon tomography to safely peer inside the cores of the Fukushima Daiichi reactors and create high-resolution images of the damaged nuclear material inside without ever breaching the

  10. LOS ALAMOS, N.M., June 21, 2016-Two Los Alamos National Laboratory projects

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

    energy technology projects from Los Alamos gain DOE funding June 21, 2016 Groundwater restoration and fractured rock insights supported LOS ALAMOS, N.M., June 21, 2016-Two Los Alamos National Laboratory projects are among technologies supported in today's U.S. Department of Energy (DOE) announcement of nearly $16 million in funding to help businesses move promising energy technologies from DOE's National Laboratories to the marketplace. "Los Alamos research expands the options for energy

  11. LOS ALAMOS, New Mexico, June 25, 2009-Los Alamos National Laboratory today

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

    issues statement on Los Alamos historical document retrieval and assessment report June 25, 2009 LOS ALAMOS, New Mexico, June 25, 2009-Los Alamos National Laboratory today provided the following statement about the Draft Final Report of the Los Alamos Historical Document Retrieval and Assessment (LAHDRA) Project. "This is an important document, and we take it seriously. We're in the process of carefully reviewing the draft final report and will submit a technical response during the 30-day

  12. LOS ALAMOS, New Mexico, June 5, 2008-Los Alamos National Laboratory's

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

    Biosafety committee will hold meeting June 10 June 5, 2008 LOS ALAMOS, New Mexico, June 5, 2008-Los Alamos National Laboratory's Institutional Biosafety Committee will hold its quarterly meeting at 10 a.m. Tuesday, June 10, in meeting room 2 of Mesa Public Library on Central Avenue in downtown Los Alamos. Three applications for research will be reviewed. The meeting is open to the public. The Los Alamos Institutional Biosafety Committee is responsible for reviewing and approving all proposals,

  13. LOS ALAMOS, New Mexico, September 2, 2008-Los Alamos National Laboratory

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

    partner for venture acceleration initiative September 2, 2008 LOS ALAMOS, New Mexico, September 2, 2008-Los Alamos National Laboratory (LANL) and its operating contractor, Los Alamos National Security, LLC, plan to partner with ARCH Venture Partners and Verge Fund for the Los Alamos Venture Acceleration (LAVA) Initiative. The initiative is a pilot program aimed at strategically spinning off technology-based companies from the Laboratory with emphasis on establishing new businesses in Northern

  14. Northern New Mexico LOS ALAMOS, New Mexico, October 29, 2008-Los Alamos National Security, LLC

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

    contractor awards LANL Foundation $3 million October 29, 2008 Funds for Educational Enrichment and Outreach in Northern New Mexico LOS ALAMOS, New Mexico, October 29, 2008-Los Alamos National Security, LLC (LANS) granted the Los Alamos National Laboratory (LANL) Foundation $3 million to provide educational enrichment and educational outreach funding for a wide variety of education programs in the seven Northern New Mexico counties of Los Alamos, Mora, Rio Arriba, San Miguel, Sandoval, Santa Fe,

  15. Effect of Composition and Heat Treatment on MnBi Magnetic Materials

    SciTech Connect (OSTI)

    Cui, Jun; Choi, Jung-Pyung; Polikarpov, Evgueni; Bowden, Mark E.; Xie, Wei; Li, Guosheng; Nie, Zimin; Zarkevich, Nikolai; Kramer, Matthew J.; Johnson, Duane D.

    2014-08-17

    The metallic compound MnBi is a promising rare-earth-free permanent magnet material. Compare to other rare-earth-free candidates, MnBi stands out for its high intrinsic coercivity (Hci) and its large positive temperature coefficient. Several groups have demonstrated that the Hci of MnBi compound in thin film or in powder form can exceed 12 kOe and 26 kOe at 300 K and 523 K, respectively. Such steep increase in Hci with increasing temperature is unique to MnBi. Consequently, MnBi is a highly sought-after hard phase for exchange coupling nanocomposite magnets. The reaction between Mn and Bi is peritectic, so Mn tends to precipitate out of the MnBi liquid during the solidification process. As result, the composition of the Mn-Bi alloy with the largest amount of the desired LTP (low temperature phase) MnBi and highest saturation magnetization will be over-stoichiometric and rich in Mn. The amount of additional Mn required to compensate the Mn precipitation depends on solidification rate: the faster the quench speed, the less Mn precipitates. Here we report a systematic study of the effect of composition and heat treatments on the phase contents and magnetic properties of Mn-Bi alloys. In this study, Mn-Bi alloys with 14 compositions were prepared using conventional metallurgical methods such as arc melting and vacuum heat treatment, and the obtained alloys were analyzed for compositions, crystal structures, phase content, and magnetic properties. The results show that the composition with 55 at.% Mn exhibits the highest LTP MnBi content and the highest magnetization. The sample with this composition shows >90 wt.% LTP MnBi content. Its measured saturation magnetization is 68 emu/g with 2.3 T applied field at 300 K; its coercivity is 13 kOe and its energy product is 12 MGOe at 300 K. A bulk magnet fabricated using this powder exhibits an energy product of 8.2 MGOe.

  16. Magnetostructural phase transformations in Tb 1-x Mn 2

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

    Zou, Junding; Paudyal, Durga; Liu, Jing; Mudryk, Yaroslav; Pecharsky, Vitalij K.; Gschneidner, Karl A.

    2015-01-16

    Magnetism and phase transformations in non-stoichiometric Tb1-xMn2 (x = 0.056, 0.039) have been studied as functions of temperature and magnetic field using magnetization, heat capacity, and X-ray powder diffraction measurements. Lowering the temperature, the compounds sequentially order ferrimagnetically and antiferromagnetically, and finally, exhibit spin reorientation transitions. Moreover, these structural distortions from room temperature cubic to low temperature rhombohedral structures occur at TN, and are accompanied by large volume changes reaching ~-1.27% and -1.42%, respectively. First principles electronic structure calculations confirm the phase transformation from the ferrimagnetic cubic structure to the antiferromagnetic rhombohedral structure in TbMn2.

  17. On the state of Mn impurity implanted in Si

    SciTech Connect (OSTI)

    Orlov, A. F.; Bublik, V. T.; Vdovin, V. I.; Agafonov, Yu. A.; Balagurov, L. A.; Zinenko, V. I.; Kulemanov, I. V.; Shcherbachev, K. D.

    2009-07-15

    The state of manganese impurity in implanted silicon at implantation doses of up to 5 x 10{sup 16} cm{sup -2} has been investigated by X-ray diffraction and transmission electron microscopy. It is established that, after short-term vacuum annealing at 850{sup o}C, most of the implanted manganese impurities are in microinclusions up to 20 nm in size formed by a tetragonal silicide phase of the Mn{sub 15}Si{sub 26} type.

  18. High-pressure structural study of MnF2

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

    Stavrou, Elissaios; Yao, Yansun; Goncharov, Alexander F.; Konopkova, Zuzana; Raptis, Constantine

    2015-02-01

    In this study, manganese fluoride (MnF2) with the tetragonal rutile-type structure has been studied using a synchrotron angle-dispersive powder x-ray diffraction and Raman spectroscopy in a diamond anvil cell up to 60 GPa at room temperature combined with first-principles density functional calculations. The experimental data reveal two pressure-induced structural phase transitions with the following sequence: rutile → SrI2 type (3 GPa)→ α–PbCl2 type (13 GPa). Complete structural information, including interatomic distances, has been determined in the case of MnF2 including the exact structure of the debated first high-pressure phase. First-principles density functional calculations confirm this phase transition sequence, and themore » two calculated transition pressures are in excellent agreement with the experiment. Lattice dynamics calculations also reproduce the experimental Raman spectra measured for the ambient and high-pressure phases. The results are discussed in line with the possible practical use of rutile-type fluorides in general and specifically MnF2 as a model compound to reveal the HP structural behavior of rutile-type SiO2 (Stishovite).« less

  19. Manganese valence and coordination structure in Mn,Mg-codoped {gamma}-AlON green phosphor

    SciTech Connect (OSTI)

    Takeda, Takashi; Xie, Rong-Jun; Hirosaki, Naoto; Matsushita, Yoshitaka; Honma, Tetuso

    2012-10-15

    The valence and coordination structure of manganese in a Mn,Mg-codoped {gamma}-AlON spinel-type oxynitride green phosphor were studied by synchrotron X-ray diffraction and absorption fine structure measurements. The absorption edge position of the XANES revealed the bivalency of Mn. Two cation sites are available in the spinel structure for cation doping: a tetrahedral site and an octahedral site. The pre-edge of the XANES and the distance to the nearest neighbor atoms obtained from the EXAFS measurement showed that Mn was situated at the tetrahedral site. Rietveld analysis showed that the vacancy occupied the octahedral site. The preferential occupation of the tetrahedral site by Mn and the roles of N and Mg are discussed in relation to the spinel crystal structure. - Graphical Abstract: Fourier transform of EXAFS of Mn K-edge for Mn,Mg-codoped green phosphor and Mn coordination structure. Highlights: Black-Right-Pointing-Pointer Mn, Mg-codoped {gamma}-AlON green phosphor for white LED. Black-Right-Pointing-Pointer The valence of Mn is divalent. Black-Right-Pointing-Pointer Mn occupies the tetrahedral site in the spinel structure.

  20. Ferromagnetic interactions and martensitic transformation in Fe doped Ni-Mn-In shape memory alloys

    SciTech Connect (OSTI)

    Lobo, D. N.; Priolkar, K. R.; Emura, S.; Nigam, A. K.

    2014-11-14

    The structure, magnetic, and martensitic properties of Fe doped Ni-Mn-In magnetic shape memory alloys have been studied by differential scanning calorimetry, magnetization, resistivity, X-ray diffraction (XRD), and EXAFS. While Ni{sub 2}MnIn{sub 1?x}Fe{sub x} (0???x???0.6) alloys are ferromagnetic and non martensitic, the martensitic transformation temperature in Ni{sub 2}Mn{sub 1.5}In{sub 1?y}Fe{sub y} and Ni{sub 2}Mn{sub 1.6}In{sub 1?y}Fe{sub y} increases for lower Fe concentrations (y???0.05) before decreasing sharply for higher Fe concentrations. XRD analysis reveals presence of cubic and tetragonal structural phases in Ni{sub 2}MnIn{sub 1?x}Fe{sub x} at room temperature with tetragonal phase content increasing with Fe doping. Even though the local structure around Mn and Ni in these Fe doped alloys is similar to martensitic Mn rich Ni-Mn-In alloys, presence of ferromagnetic interactions and structural disorder induced by Fe affect Mn-Ni-Mn antiferromagnetic interactions resulting in suppression of martensitic transformation in these Fe doped alloys.

  1. Effect of composition and heat treatment on MnBi magnetic materials

    SciTech Connect (OSTI)

    Cui, Jun [Pacific Northwest National Laboratory; Choi, Jung-Pyung [Pacific Northwest National Laboratory; Polikarpov, Evgueni [Pacific Northwest National Laboratory; Bowden, Mark E [Pacific Northwest National Laboratory; Xie, Wei [Pacific Northwest National Laboratory; Li, Guosheng [Pacific Northwest National Laboratory; Nie, Zimin [Pacific Northwest National Laboratory; Zarkevich, Nikolai [Ames Laboratory; Kramer, Matthew J [Ames Laboratory; Johnson, Duane [Ames Laboratory

    2014-10-01

    The metallic compound MnBi is a promising rare-earth-free permanent magnet material, unique among all candidates for its high intrinsic coercivity (Hci) and its large positive temperature coefficient. The Hci of MnBi in thin-film or powder form can exceed 12 and 26 kOe at 300 and 523 K, respectively. Such a steep rise in Hci with increasing temperature is unique to MnBi. Consequently, MnBi is a highly sought-after hard phase for exchange coupling nanocomposite magnets. However, the reaction between Mn and Bi is peritectic, and hence Mn tends to precipitate out of the MnBi liquid during the solidification process. As result, when the alloy is prepared using conventional induction or arc-melting casting methods, additional Mn is required to compensate the precipitation of Mn. In addition to composition, post-casting annealing plays an important role in obtaining a high content of MnBi low-temperature phase (LTP) because the annealing encourages the Mn precipitates and the unreacted Bi to react, forming the desired LTP phase. Here we report a systematic study of the effect of composition and heat treatments on the phase content and magnetic properties of MnBi alloys. In this study, 14 compositions were prepared using conventional metallurgical methods, and the compositions, crystal structures, phase content and magnetic properties of the resulting alloys were analyzed. The results show that the composition with 55 at.% Mn exhibits both the highest LTP content (93 wt.%) and magnetization (74 emu g?1 with 9 T applied field at 300 K).

  2. Dynamic study of (De)sodiation in alpha-MnO2 nanowires

    SciTech Connect (OSTI)

    Yuan, Yifei; Ma, Lu; He, Kun; Yao, Wentao; Nie, Anmin; Bi, Xuanxuan; Amine, Khalil; Wu, Tianpin; Lu, Jun; Shahbazian-Yassr, Reza

    2016-01-01

    In this report, the electrochemical sodiation and desodiation in single crystalline alpha-MnO2 nanowires are studied dynamically at both single particle level using in situ transmission electron microscopy (TEM) and bulk level using in situ synchrotron X-ray. The TEM results suggest that the first sodiation process starts with tunnel-based Na+ intercalation, experiences the formation of Na0.5MnO2 as a result of tunnel degradation, and ends with the Mn2O3 phase. The inserted Na+ can be partially extracted out of the sodiated products, and the following cycles are dominated by the reversible conversion reaction between Na0.5MnO2 and Mn2O3. The Mn valence evolution inside a cycling coin using alpha-MnO2 nanowire electrode also exhibits partially reversible characteristic, agreeing well with the in situ TEM analysis. The sodiation is compared with lithiation in the same alpha-MnO2 nanowires. Both Na+ and Li+ interact with the tunneled structure via a similar tunnel -driven intercalation mechanism before Mn4+ is reduced to Mn3.5+. For the following deep insertion, the tunnels survive up. to LiMnO2 (Mn3+) during lithiation, while the sodiation proceeds via a different mechanism that involves obvious phase transition and fast tunnel degradation after Mn's valence is below 3.5+. The difference in charge carrier insertion mechanisms can be ascribed to the strong interaction between the tunnel frame and inserted Na+ possessing a larger ionic size than inserted Li+.

  3. Large exchange bias enhancement in (Pt(or Pd)/Co)/IrMn/Co trilayers with ultrathin IrMn thanks to interfacial Cu dusting

    SciTech Connect (OSTI)

    Vinai, G. [SPINTEC, UMR 8191 CEA/CNRS/UJF/Grenoble-INP, CEA/INAC, 17, rue des Martyrs, 38054 Grenoble (France); Crocus Technology, 4 Place Robert Schuman, 38054 Grenoble (France); Moritz, J. [Institut Jean Lamour, UMR 7198 CNRS - Universit de Lorraine, Bd des Aiguillettes, BP 70239, F-54506 Vandoeuvre-les-Nancy Cedex (France); Bandiera, S. [Crocus Technology, 4 Place Robert Schuman, 38054 Grenoble (France); Prejbeanu, I. L.; Dieny, B. [SPINTEC, UMR 8191 CEA/CNRS/UJF/Grenoble-INP, CEA/INAC, 17, rue des Martyrs, 38054 Grenoble (France)

    2014-04-21

    The magnitude of exchange bias (H{sub ex}) at room temperature can be significantly enhanced in IrMn/Co and (Pt(or Pd)/Co)/IrMn/Co structures thanks to the insertion of an ultrathin Cu dusting layer at the IrMn/Co interface. The combination of trilayer structure and interfacial Cu dusting leads to a three-fold increase in H{sub ex} as compared to the conventional IrMn/Co bilayer structure, with an increased blocking temperature (T{sub B}) and a concave curvature of the temperature dependence H{sub ex}(T), ideal for improved Thermally Assisted-Magnetic Random Access Memory storage layer. This exchange bias enhancement is ascribed to a reduction of the spin frustration at the IrMn/Co interface thanks to interfacial Cu addition.

  4. Synthesis, characterization and electrochemical performance of Al-substituted Li₂MnO₃

    SciTech Connect (OSTI)

    Dhital, Chetan; Huq, Ashfia; Paranthaman, Mariappan Parans; Manivannan, Ayyakkannu; Torres-Castro, Loraine; Shojan, Jifi; Julien, Christian M.; Katiyar, Ram S.

    2015-08-08

    Li2MnO3 is known to be electrochemically inactive due to Mn in tetravalent oxidation state. Several compositions such as Li2MnO3 , Li1.5Al0.17MnO3, Li1.0Al0.33MnO3 and Li0.5Al0.5MnO3 were synthesized by a sol–gel Pechini method. All the samples were characterized with x-ray diffraction, Raman, x-ray photoelectron spectroscopy, scanning electron microscopy, Tap density and BET analyzer. X-ray diffraction patterns indicated the presence of monoclinic phase for pristine Li2MnO3and mixed monoclinic/spinel phases (Li2 - xMn1 - yAlx + yO3 + z) for Al-substituted Li2MnO3compounds. The Al substitution seems to occur both at Li and Mn sites, which could explain the presence of spinel phase. X-ray photoelectron spectroscopy for Mn 2p orbital reveals a significant decrease in binding energy for Li1.0Al0.33MnO3 and Li0.5Al0.5MnO3 compounds. Cyclic voltammetry, charge/discharge cycles and electrochemical impedance spectroscopy were also performed. A discharge capacity of 24 mAh g-1 for Li2MnO3, 68 mAh g-1 for Li1.5Al0.17MnO3, 58 mAh g-1 for Li1.0Al0.33MnO3 and 74 mAh g-1 for Li0.5Al0.5MnO3 were obtained. As a result, aluminum substitutions increased the formation of spinel phase which is responsible for cycling.

  5. Workers Complete Demolition at Historic Los Alamos Site

    Broader source: Energy.gov [DOE]

    LOS ALAMOS, N.M. – A team lead by the Environmental Management Los Alamos Field Office recently completed demolition of a building at a historic Los Alamos site.

  6. Notice of Intent to Investigate, Los Alamos National Security...

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

    Charles F. McMillan, President Los Alamos National Security, LLC Los Alamos National Laboratory Mailstop A 100, Drop Point 03140071S Bikini Atoll Road, TA-3 Los Alamos, New Mexico ...

  7. Los Alamos Field Office Installs Additional Safety Measure to Drums

    Broader source: Energy.gov [DOE]

    LOS ALAMOS, N.M. – EM’s Los Alamos Field Office and contractor Los Alamos National Security, LLC (LANS) recently completed installation of high efficiency particulate air (HEPA) filtration systems to remediated nitrate salt (RNS) drums.

  8. Ni Ni: University of California - Los Angeles

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

    Ni Ni: University of California - Los Angeles Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All Issues » submit Ni Ni: University of California - Los Angeles Condensed matter January 1, 2015 Ni Ni Ni Ni Contact Linda Anderman Email Ni Ni Ni Ni now at the University of California-Los Angeles After finishing her work at Princeton, Ni Ni began at the Lab as a postdoc in 2012 with the Condensed Matter and Magnetic Science Group. Ni was

  9. The magnetic origin of multiferroic Y{sub 2}CoMnO{sub 6}

    SciTech Connect (OSTI)

    Jia, Ting; Zeng, Zhi; Li, X. G.; Lin, H. Q.

    2015-05-07

    It has been found experimentally that the ferroelectricity in Y{sub 2}CoMnO{sub 6} is driven by a magnetic ordering of collinear up-up-down-down (↑↑↓↓). Here, the origin of the magnetism and thereby ferroelectricity is studied using first-principles calculations. We first confirm that the experimentally observed ↑↑↓↓ antiferromagnetic structure is the ground state of Y{sub 2}CoMnO{sub 6}. Additionally, both the Co{sup 2+} and Mn{sup 4+} are in the high-spin state. By analyzing the exchange coupling and corresponding pathways, we conclude that the ↑↑↓↓ spin order in Y{sub 2}CoMnO{sub 6} originates from a subtle competition between the ferromagnetic Co-O-Mn super-exchange and antiferromagnetic Co-Mn direct-exchange along c axis.

  10. No increase in background, manmade radioactivity for Los Alamos area

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

    Man-Made Radioactivity For Los Alamos area No increase in background, manmade radioactivity for Los Alamos area Two aerial flyovers found that radioisotopes and their associated exposure rates are consistent with those expected from normal background radiation. March 19, 2013 High southwest aerial view of Los Alamos National Laboratory (left) and Los Alamos townsite (middle and right). High southwest aerial view of Los Alamos National Laboratory (left) and Los Alamos townsite (middle and right).

  11. Los Alamos National Lab Performance Evaluations | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration | (NNSA) Los Alamos National Lab Performance Evaluations FY 2016 FY 2016 Performance Evaluation Plan, Los Alamos National Security, LLC FY 2015 FY 2015 Performance Evaluation Report, Los Alamos National Security, LLC FY 2015 Performance Evaluation Report, Fee Determination Letter, Los Alamos National Security, LLC FY 2015 Performance Evaluation Plan, Los Alamos National Security, LLC FY 2014 FY 2014 Performance Evaluation Report, Los Alamos National Security, LLC FY 2014

  12. Structural and ferromagnetic properties of an orthorhombic phase of MnBi stabilized with Rh additions

    SciTech Connect (OSTI)

    Taufour, Valentin; Thimmaiah, Srinivasa; March, Stephen; Saunders, Scott; Sun, Kewei; Lamichhane, Tej Nath; Kramer, Matthew J.; Bud’ko, Sergey L.; Canfield, Paul C.

    2015-07-28

    The article addresses the possibility of alloy elements in MnBi which may modify the thermodynamic stability of the NiAs-type structure without significantly degrading the magnetic properties. The addition of small amounts of Rh and Mn provides an improvement in the thermal stability with some degradation of the magnetic properties. The small amounts of Rh and Mn additions in MnBi stabilize an orthorhombic phase whose structural and magnetic properties are closely related to the ones of the previously reported high-temperature phase of MnBi (HT MnBi). The properties of the HT MnBi, which is stable between 613 and 719 K, have not been studied in detail because of its transformation to the stable low-temperature MnBi (LT MnBi), making measurements near and below its Curie temperature difficult. The Rh-stabilized MnBi with chemical formula Mn1.0625–xRhxBi [x=0.02(1)] adopts a new superstructure of the NiAs/Ni2In structure family. It is ferromagnetic below a Curie temperature of 416 K. The critical exponents of the ferromagnetic transition are not of the mean-field type but are closer to those associated with the Ising model in three dimensions. The magnetic anisotropy is uniaxial; the anisotropy energy is rather large, and it does not increase when raising the temperature, contrary to what happens in LT MnBi. The saturation magnetization is approximately 3μB/f.u. at low temperatures. Thus, while this exact composition may not be application ready, it does show that alloying is a viable route to modifying the stability of this class of rare-earth-free magnet alloys.

  13. Cr(OH)₃(s) Oxidation Induced by Surface Catalyzed Mn(II) Oxidation

    SciTech Connect (OSTI)

    Namgung, Seonyi; Kwon, M.; Qafoku, Nikolla; Lee, Gie Hyeon

    2014-09-16

    This study examined the feasibility of Cr(OH)₃(s) oxidation mediated by surface catalyzed Mn(II) oxidation under common groundwater pH conditions as a potential pathway of natural Cr(VI) contaminations. Dissolved Mn(II) (50 μM) was reacted with or without synthesized Cr(OH)₃(s) (1.0 g/L) at pH 7 – 9 under oxic or anoxic conditions. In the absence of Cr(OH)₃(s), homogeneous Mn(II) oxidation by dissolved O₂ was not observed at pH ≤ 8.0 for 50 d. At pH 9.0, by contrast, dissolved Mn(II) was completely removed within 8 d and precipitated as hausmannite. When Cr(OH)₃(s) was present, this solid was oxidized and released substantial amounts of Cr(VI) as dissolved Mn(II) was added into the suspension at pH ≥ 8.0 under oxic conditions. Our results suggest that Cr(OH)₃(s) was readily oxidized by a newly formed Mn oxide as a result of Mn(II) oxidation catalyzed on Cr(OH)₃(s) surface. XANES analysis of the residual solids after the reaction between 1.0 g/L Cr(OH)₃(s) and 204 μM Mn(II) at pH 9.0 for 22 d revealed that the product of surface catalyzed Mn(II) oxidation resembled birnessite. The rate and extent of Cr(OH)₃(s) oxidation was likely controlled by those of surface catalyzed Mn(II) oxidation as the production of Cr(VI) increased with increasing pH and initial Mn(II) concentrations. This study evokes the potential environmental hazard of sparingly soluble Cr(OH)₃(s) that can be a source of Cr(VI) in the presence of dissolved Mn(II).

  14. Structural and ferromagnetic properties of an orthorhombic phase of MnBi stabilized with Rh additions

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

    Taufour, Valentin; Thimmaiah, Srinivasa; March, Stephen; Saunders, Scott; Sun, Kewei; Lamichhane, Tej Nath; Kramer, Matthew J.; Bud’ko, Sergey L.; Canfield, Paul C.

    2015-07-28

    The article addresses the possibility of alloy elements in MnBi which may modify the thermodynamic stability of the NiAs-type structure without significantly degrading the magnetic properties. The addition of small amounts of Rh and Mn provides an improvement in the thermal stability with some degradation of the magnetic properties. The small amounts of Rh and Mn additions in MnBi stabilize an orthorhombic phase whose structural and magnetic properties are closely related to the ones of the previously reported high-temperature phase of MnBi (HT MnBi). The properties of the HT MnBi, which is stable between 613 and 719 K, have notmore » been studied in detail because of its transformation to the stable low-temperature MnBi (LT MnBi), making measurements near and below its Curie temperature difficult. The Rh-stabilized MnBi with chemical formula Mn1.0625–xRhxBi [x=0.02(1)] adopts a new superstructure of the NiAs/Ni2In structure family. It is ferromagnetic below a Curie temperature of 416 K. The critical exponents of the ferromagnetic transition are not of the mean-field type but are closer to those associated with the Ising model in three dimensions. The magnetic anisotropy is uniaxial; the anisotropy energy is rather large, and it does not increase when raising the temperature, contrary to what happens in LT MnBi. The saturation magnetization is approximately 3μB/f.u. at low temperatures. Thus, while this exact composition may not be application ready, it does show that alloying is a viable route to modifying the stability of this class of rare-earth-free magnet alloys.« less

  15. Electronic Structure and Oxidation State Changes in the Mn (4) Ca Cluster of Photosystem II

    SciTech Connect (OSTI)

    Yano, J.; Pushkar, Y.; Messinger, J.; Bergmann, U.; Glatzel, P.; Yachandra, V.K.; /SLAC

    2012-08-17

    Oxygen-evolving complex (Mn{sub 4}Ca cluster) of Photosystem II cycles through five intermediate states (S{sub i}-states, i = 0-4) before a molecule of dioxygen is released. During the S-state transitions, electrons are extracted from the OEC, either from Mn or alternatively from a Mn ligand. The oxidation state of Mn is widely accepted as Mn{sub 4}(III{sub 2},IV{sub 2}) and Mn{sub 4}(III,IV{sub 3}) for S{sub 1} and S{sub 2} states, while it is still controversial for the S{sub 0} and S{sub 3} states. We used resonant inelastic X-ray scattering (RIXS) to study the electronic structure of Mn{sub 4}Ca complex in the OEC. The RIXS data yield two-dimensional plots that provide a significant advantage by obtaining both K-edge pre-edge and L-edge-like spectra (metal spin state) simultaneously. We have collected data from PSII samples in the each of the S-states and compared them with data from various inorganic Mn complexes. The spectral changes in the Mn 1s2p{sub 3/2} RIXS spectra between the S-states were compared to those of the oxides of Mn and coordination complexes. The results indicate strong covalency for the electronic configuration in the OEC, and we conclude that the electron is transferred from a strongly delocalized orbital, compared to those in Mn oxides or coordination complexes. The magnitude for the S{sub 0} to S{sub 1}, and S{sub 1} to S{sub 2} transitions is twice as large as that during the S{sub 2} to S{sub 3} transition, indicating that the electron for this transition is extracted from a highly delocalized orbital with little change in charge density at the Mn atoms.

  16. Independent Activity Report, Los Alamos Site Office - April 2012...

    Office of Environmental Management (EM)

    Independent Activity Report, Los Alamos Site Office - April 2012 April 2012 Los Alamos Site Office Nuclear Maintenance Management Program Oversight Self-Assessment ...

  17. Smart Grid Control and Optimization Backhaus, Scott N. [Los Alamos...

    Office of Scientific and Technical Information (OSTI)

    Los Alamos National Laboratory Energy Sciences; Energy Planning, Policy, & Economy(29); Energy Storage(25) Abstract Not Provided Los Alamos National Laboratory (LANL) LDRD United...

  18. Experimental Physical Sciences Vistas: Los Alamos NPAC Research...

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    Technical Report: Experimental Physical Sciences Vistas: Los Alamos NPAC Research Citation Details In-Document Search Title: Experimental Physical Sciences Vistas: Los Alamos NPAC...

  19. Townsite Cleanup Continues in Los Alamos Canyon | Department of Energy

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    Townsite Cleanup Continues in Los Alamos Canyon Townsite Cleanup Continues in Los Alamos Canyon LOS ALAMOS, N.M.,-The Department of Energy's (DOE) Environmental Management Los Alamos Field Office (EM-LA) and Los Alamos National Security, LLC (LANS) is moving forward with the removal of contaminated soil along the south-facing slopes of Los Alamos Canyon adjacent to the Los Alamos Townsite. DOE-EM-LA-Townsite-Cleanup-Continues-in-Los-Alamos-Canyon-Final.pdf (114.01 KB) More Documents &

  20. National Nuclear Security Administration has selected Los Alamos...

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    TA-55 to continue LOS ALAMOS, New Mexico, December 18, 2007 - The Department of Energy's National Nuclear Security Administration has selected Los Alamos National Laboratory as...

  1. Central Characterization Program (CCP) Los Alamos National Laboratory...

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    Los Alamos National Laboratory (LANL) Interface Document Central Characterization Program (CCP) Los Alamos National Laboratory (LANL) Interface Document This document was used to ...

  2. Barnes, Cris William [Los Alamos National Laboratory]; Kippen...

    Office of Scientific and Technical Information (OSTI)

    MaRIE: A facility for time-dependent materials science at the mesoscale Barnes, Cris William Los Alamos National Laboratory; Kippen, Karen Elizabeth Los Alamos National...

  3. Los Alamos catalyst could jumpstart e-cars, green energy

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    and certain electrolyzers. Economical non-precious-metal catalyst capitalizes on carbon nanotubes LOS ALAMOS, New Mexico, June 4, 2013-Los Alamos National Laboratory...

  4. Los Angeles Department of Water Power LADWP | Open Energy Information

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    LADWP Jump to: navigation, search Name: Los Angeles Department of Water & Power (LADWP) Place: Los Angeles, CA, California Zip: 90012 Product: Municipal utility serving the water...

  5. Los Angeles Department of Water & Power | Open Energy Information

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    Los Angeles Department of Water & Power Jump to: navigation, search Name: Los Angeles Department of Water & Power Place: California Phone Number: 800-342-5397 Website:...

  6. Christopher D. Fischahs Of Los Alamos Field Office Presented...

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    Christopher D. Fischahs Of Los Alamos Field Office Presented 2013 Safety System Oversight Annual Award Christopher D. Fischahs Of Los Alamos Field Office Presented 2013 Safety ...

  7. National Nuclear Security Administration LOS ALAMOS SITE OFFICE

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    Nuclear Security Administration LOS ALAMOS SITE OFFICE National Nuclear Security Administration CONTRACT MANAGEMENT PLAN For LOS ALAMOS NATIONAL LABORATORY CONTRACT NO....

  8. Los Angeles, California: Energy Resources | Open Energy Information

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    Los Angeles, California: Energy Resources (Redirected from Los Angeles, CA) Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.0522342, -118.2436849 Show Map...

  9. The Science Program at the Los Alamos Ultracold Neutron Source...

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    Technical Report: The Science Program at the Los Alamos Ultracold Neutron Source Citation Details In-Document Search Title: The Science Program at the Los Alamos Ultracold Neutron ...

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  11. Scientific Computing at Los Alamos National Laboratory (Conference...

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    Scientific Computing at Los Alamos National Laboratory Citation Details In-Document Search Title: Scientific Computing at Los Alamos National Laboratory You are accessing a ...

  12. Los Angeles County Makeover Contest Attracts More Than Just Winners...

    Energy Savers [EERE]

    'Energy Upgrade California.' Six homeowners from Los Angeles County will receive free home energy makeovers from a contest organized by Energy Upgrade California in Los Angeles ...

  13. ARM - AMF Deployment, Los Angeles, California, to Honolulu, Hawaii

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    AMF Deployment, Los Angeles, California, to Honolulu, Hawaii From October 2012 through ... During approximately 20 round trips between Los Angeles, California, and Honolulu, Hawaii, ...

  14. Los Alamos improves biomass-to-fuel process

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    Biomass-to-fuel Process Improved Los Alamos improves biomass-to-fuel process Los Alamos scientists and collaborators published an article in the scientific journal Nature Chemistry...

  15. World's largest single crystal of gold verified by Los Alamos...

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    Los Alamos verifies largest single gold crystal World's largest single crystal of gold verified by Los Alamos instruments Using Lujan Center's HIPPO instrument, researchers probed ...

  16. Los Alamos offers participants hands-on experience with renewable...

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    Los Alamos offers participants hands-on experience with renewable energy technology Citation Details In-Document Search Title: Los Alamos offers participants hands-on experience...

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    Los Alamos Field Corrective Action Plan - Radiological Release Phase II Environmental Management Los Alamos Field Corrective Action Plan - Radiological Release Phase II On March...

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    National Nuclear Security Administration (NNSA)

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    FY 2009 Los Alamos National Security, LLC, PER Summary SUMMARY OF FY 2009 LOS ALAMOS NATIONAL SECURITY, LLC, AWARD FEE DETERMINATION Total Available Fee Total Fee Earned % ...

  1. FY 2008 Los Alamos National Security, LLC, PER Summary | National...

    National Nuclear Security Administration (NNSA)

    FY 2008 Los Alamos National Security, LLC, PER Summary SUMMARY OF FY 2008 LOS ALAMOS NATIONAL SECURITY, LLC, AWARD FEE DETERMINATION Total Available Fee Total Fee Earned % ...

  2. FY 2010 Los Alamos National Security, LLC, PER Summary | National...

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    FY 2010 Los Alamos National Security, LLC, PER Summary SUMMARY OF FY 2011 LOS ALAMOS NATIONAL SECURITY, LLC, AWARD FEE DETERMINATION Total Available Fee Total Fee Earned % ...

  3. Talou, Patrick [Los Alamos National Laboratory]; Kawano, Toshihiko...

    Office of Scientific and Technical Information (OSTI)

    advances in nuclear fission theory: pre- and post-scission physics Talou, Patrick Los Alamos National Laboratory; Kawano, Toshihiko Los Alamos National Laboratory; Bouland,...

  4. The Science Program at the Los Alamos Ultracold Neutron Source...

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    Los Alamos National Laboratory Physics of Elementary Particles & Fields(72) Atomic and Nuclear Physics Atomic and Nuclear Physics Abstract Not Provided Los Alamos National...

  5. Enforcement Letter, Los Alamos National Laboratory - July 7,...

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    Enforcement Letter, Los Alamos National Laboratory - July 7, 2003 July 7, 2003 Issued to Los Alamos National Laboratory related to Negative Performance Trends On July 7, 2003, the ...

  6. Los Alamos National Laboratory fission basis (Conference) | SciTech...

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    Los Alamos National Laboratory Publication Date: 2011-05-06 OSTI Identifier: 1063939 ... Symposium on Reactor Dosimetry ; May 22, 2011 ; Bretton Woods, NH Research Org: Los ...

  7. Los Alamos Field Office | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics Los Alamos Field Office Los Alamos Field Office FY15 Year End Report Semi Annual...

  8. New Mexico Airlines begins Los Alamos/ Albuquerque flights April...

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    New Mexico Airlines begins Los Alamos Albuquerque flights April 8 Community Connections: ... Latest Issue:July 2016 all issues All Issues submit New Mexico Airlines begins Los ...

  9. Voluntary Protection Program Onsite Review, Los Alamos National...

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    Laboratory - November 2011 Voluntary Protection Program Onsite Review, Los Alamos National Laboratory - November 2011 November 2011 Evaluation to determine whether Los Alamos...

  10. Los Alamos laser selected for 2020 Mars mission

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    Los Alamos laser selected for 2020 Mars mission Los Alamos laser selected for 2020 Mars mission SuperCam builds upon the successful capabilities demonstrated aboard the Curiosity ...

  11. Los Alamos National Laboratory | National Nuclear Security Administrat...

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    NNSA labs fight fire with simulation More about LANL Contractor Performance Los Alamos Field Office Contact Employee Concerns Program LANS Contract Los Alamos Field Office ...

  12. Supporting New Mexico's economy LOS ALAMOS, New Mexico, April...

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    Lab awards 753 million in contracts April 16, 2009 Supporting New Mexico's economy LOS ALAMOS, New Mexico, April 16, 2009- Los Alamos National Security, LLC recently awarded...

  13. Contract Awarded for Los Alamos National Laboratory Natural Resource...

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    Los Alamos National Laboratory Natural Resource Damage Assessment Contract Awarded for Los ... DeliveryIndefinite Quantity (IDIQ) contract to Industrial Economics, Incorporated, ...

  14. Nuclear Materials Technology Division/Los Alamos National Laboratory

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    Technical Accomplish- ments for 1994 2 Nuclear Materials Technology DivisionLos Alamos ... Figure 1. Acid recycle and recovery system. 3 Nuclear Materials Technology DivisionLos ...

  15. Independent Activity Report, Los Alamos National Security - June...

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    Independent Activity Report, Los Alamos National Security - June 2011 June 2011 Review of the Los Alamos National Security Emergency Operations Division Emergency Management ...

  16. Los Gatos, California: Energy Resources | Open Energy Information

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    Los Gatos, California: Energy Resources (Redirected from Los Gatos, CA) Jump to: navigation, search Equivalent URI DBpedia Coordinates 37.226611, -121.9746797 Show Map Loading...

  17. Research at Los Alamos (Technical Report) | SciTech Connect

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    Technical Report: Research at Los Alamos Citation Details In-Document Search Title: Research at Los Alamos Recruiting presentation at Texas A&M student chapter American Nuclear ...

  18. Los Alamos National Laboratory fission basis (Conference) | SciTech...

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    Los Alamos National Laboratory fission basis Citation Details In-Document Search Title: Los Alamos National Laboratory fission basis You are accessing a document from the ...

  19. CRAD, Occupational Safety & Health - Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    & Health - Los Alamos National Laboratory TA 55 SST Facility CRAD, Occupational Safety & Health - Los Alamos National Laboratory TA 55 SST Facility A section of Appendix C to DOE...

  20. Enforcement Letter, Los Alamos National Security, LLC - May 15...

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    Issued to Los Alamos National Security, LLC related to the Protection of Classified ... about the protection of classified information at the Los Alamos National Laboratory. ...

  1. Preliminary Notice of Violation, Los Alamos National Laboratory...

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    Reproduction and Removal of Classified Matter from the Los Alamos National ... reproduction and removal of classified matter from the Los Alamos National ...

  2. A picture of leadership: portrait helps commemorate Los Alamos...

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    The family of Gen. Leslie Groves donated his official military portrait to the Los Alamos ... Groves donated his official military portrait to the Los Alamos Historical Society. Groves ...

  3. Additive Manufacturing for Ceramics Peterson, Dominic S. [Los...

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    Additive Manufacturing for Ceramics Peterson, Dominic S. Los Alamos National Laboratory Los Alamos National Laboratory Materials Science(36) 3d printing 3d printing Abstract...

  4. Next Generation Safeguards Initiative at Los Alamos National...

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    Initiative at Los Alamos National Laboratory - student perspective Citation Details In-Document Search Title: Next Generation Safeguards Initiative at Los Alamos National ...

  5. Enterprise Assessments Review of the Los Alamos National Laboratory...

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    Enterprise Assessments Review of the Los Alamos National Laboratory September 2015 ... Emergency Response Capabilities at the Los Alamos National Laboratory The Office of ...

  6. Remediated Nitrate Salt Drums Storage at Los Alamos National...

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

    Remediated Nitrate Salt Drums Storage at Los Alamos National Laboratory Remediated Nitrate Salt Drums Storage at Los Alamos National Laboratory As a part of its national security ...

  7. Independent Oversight Activity Report, Los Alamos National Laboratory...

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

    Los Alamos National Laboratory - February 12, 2014 Independent Oversight Activity Report, Los Alamos National Laboratory - February 12, 2014 February 2014 Review of Corrective ...

  8. 2013 Annual Planning Summary for the Los Alamos Site Office ...

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

    Los Alamos Site Office 2013 Annual Planning Summary for the Los Alamos Site Office The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2013 ...

  9. Enforcement Notice of Intent to Investigate, Los Alamos National...

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    Enforcement Notice of Intent to Investigate, Los Alamos National Security, LLC April 2015 ... energy assessment and control requirements at the Los Alamos National Laboratory. ...

  10. Distribution-Transformer Level Flynn, Eric B. [Los Alamos National

    Office of Scientific and Technical Information (OSTI)

    Taming the Grid: Dynamic Load Composition Quantification at the Distribution-Transformer Level Flynn, Eric B. Los Alamos National Laboratory; Holby, Edward F. Los Alamos...

  11. 2011 Annual Planning Summary for Los Alamos Site Office (LASO...

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    Los Alamos Site Office (LASO) 2011 Annual Planning Summary for Los Alamos Site Office (LASO) The ongoing and projected Environmental Assessments and Environmental Impact Statements ...

  12. 2010 Annual Workforce Analysis and Staffing Plan Report - Los...

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    Los Alamos Site Office 2010 Annual Workforce Analysis and Staffing Plan Report - Los Alamos Site Office Managers perform an annual workforce analysis of their organization and ...

  13. 2015 Annual Workforce Analysis and Staffing Plan Report - Los...

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    Los Alamos Field Office 2015 Annual Workforce Analysis and Staffing Plan Report - Los Alamos Field Office Managers perform an annual workforce analysis of their organization and ...

  14. 2012 Annual Planning Summary for Los Alamos Site Office | Department...

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    Los Alamos Site Office 2012 Annual Planning Summary for Los Alamos Site Office The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2012 and ...

  15. Energy Secretary's Statement on Los Alamos Lab Leadership Changes...

    National Nuclear Security Administration (NNSA)

    Energy Secretary's Statement on Los Alamos Lab Leadership Changes May 06, 2005 Energy Secretary's Statement on Los Alamos Lab Leadership Changes

  16. Los lideres de energia en EEUU toman medidas para desarrollar...

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    ... de los cinco elementos de ECPA: la eficiencia energtica, la energa renovable, los hidrocarburos ms limpios, la infraestructura crtica, y alivio de pobreza de energa. ...

  17. New Mexico Environmental Department (NMED) Los Alamos National...

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    New Mexico Environmental Department (NMED) Los Alamos National Laboratory (LANL) Hazardous Waste Facility Permit New Mexico Environmental Department (NMED) Los Alamos National ...

  18. National Nuclear Security Administration Los Alamos Site Office

    Office of Environmental Management (EM)

    National Nuclear Security Administration Los Alamos Site Office Los Alamos, New Mexico 87544 mrsm Mr. Ralph L. Phelps Chairman Northem New Mexico Citizens Advisory Board...

  19. Independent Oversight Review, Los Alamos Site Office - March...

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    Site Office - March 2012 Independent Oversight Review, Los Alamos Site Office - March 2012 March 2012 Review of the Los Alamos Site Office Safety System Oversight Program ...

  20. Los Alamos National Laboratory: Las Conchas Fire Update | Department...

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    NNSA Los Alamos Site Office Manager Kevin Smith. "The improvements between then and now ... Los Alamos Site Office Manager Kevin Smith, and Laboratory Director Charles McMillan ...

  1. Los Alamos National Laboratory Scientific Excellence for...

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    ... "microstructure to performance" - Los Alamos is involved broadly with the community Whitehouse.gov meso2012.com science.energy.gov Materials Genome Sub-mm resolution 100's - ...

  2. Environmental surveillance at Los Alamos during 1994

    SciTech Connect (OSTI)

    1996-07-01

    This report describes environmental monitoring activities at Los Alamos National Laboratory for 1994. Data were collected to assess external penetrating radiation, airborne emissions, liquid effluents, radioactivity of environmental materials and food stuffs, and environmental compliance.

  3. New Rad Lab for Los Alamos

    ScienceCinema (OSTI)

    None

    2010-01-08

    The topping out ceremony for a key construction stage in the Los Alamos National Laboratory's newest facility, the Radiological Laboratory Utility & Office Building. This is part of the National Nu...  

  4. Los Alamos Space Weather Summer School

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

    for Non-U.S Citizens Mentors, Projects Lectures Papers, Reports Photos NSEC IGPPS Space Weather Summer School Los Alamos Space Weather Summer School June 6 - July 29, 2016...

  5. Los Angeles County- LEED for County Buildings

    Broader source: Energy.gov [DOE]

    In January 2007, the Los Angeles County Board of Supervisors adopted rules to require that all new county buildings greater than 10,000 square feet be LEED Silver certified. All buildings...

  6. City of Los Angeles- Zoning Code

    Broader source: Energy.gov [DOE]

    Chapter I of Los Angeles' Municipal Code, Height of Building or Structures, provides an exemption for solar energy devices, or similar structures. They may be erected above the height limit...

  7. Los Alamos National Laboratory sponsors Hazmat Challenge

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    the opportunity to network and learn new techniques under realistic conditions in a safe environment. July 27, 2009 Los Alamos National Laboratory sits on top of a once-remote...

  8. From Earth to Saturn: Los Alamos Achievements

    SciTech Connect (OSTI)

    McMillan, Charlie; Wilson, Cathy; Nekimkem, Howard; Martinez, Johnnie; Martz, Joe; Albright, Brian

    2008-06-26

    A compilation of some of the remarkable achievements of Los Alamos National Laboratory staff over the past 12 months. Originally aired in the June 26, 2008 Director's all-employee meeting.

  9. Los Alamos scientists monitor Santa's magical journey

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    began in 1955 when a Sears, Roebuck ad included a misprinted phone number for Santa. ... They can call upon a satellite-tracking dish, located in Los Alamos, and use sensors on ...

  10. Publications of Los Alamos research 1988

    SciTech Connect (OSTI)

    Varjabedian, K.; Dussart, S.A.; McClary, W.J.; Rich, J.A.

    1989-12-01

    This bibliography lists unclassified publications of work done at the Los Alamos National Laboratory for 1988. The entries, which are subdivided by broad subject categories, are cross-referenced with an author index and a numeric index.

  11. City of Los Angeles Bureau of Sanitation

    SciTech Connect (OSTI)

    Not Available

    2004-02-01

    Fact sheet compares emissions testing of Dual-Fuel liquefied natural gas (LNG) and diesel Los Angeles Bureau of Sanitation refuse trucks, performed by DOE's Advanced Vehicle Testing Activity.

  12. From Earth to Saturn: Los Alamos Achievements

    ScienceCinema (OSTI)

    McMillan, Charlie; Wilson, Cathy; Nekimkem, Howard; Martinez, Johnnie; Martz, Joe; Albright, Brian

    2014-08-13

    A compilation of some of the remarkable achievements of Los Alamos National Laboratory staff over the past 12 months. Originally aired in the June 26, 2008 Director's all-employee meeting.

  13. Preparation and electrochemical properties of lamellar MnO{sub 2} for supercapacitors

    SciTech Connect (OSTI)

    Yan, Jun; Wei, Tong; Cheng, Jie; Fan, Zhuangjun; Zhang, Milin

    2010-02-15

    Lamellar birnessite-type MnO{sub 2} materials were prepared by changing the pH of the initial reaction system via hydrothermal synthesis. The interlayer spacing of MnO{sub 2} with a layered structure increased gradually when the initial pH value varied from 12.43 to 2.81, while the MnO{sub 2}, composed of {alpha}-MnO{sub 2} and {gamma}-MnO{sub 2}, had a rod-like structure at pH 0.63. Electrochemical studies indicated that the specific capacitance of birnessite-type MnO{sub 2} was much higher than that of rod-like MnO{sub 2} at high discharge current densities due to the lamellar structure with fast intercalation/deintercalation of protons and high utilization of MnO{sub 2}. The initial specific capacitance of MnO{sub 2} prepared at pH 2.81 was 242.1 F g{sup -1} at 2 mA cm{sup -2} in 2 mol L{sup -1} (NH{sub 4}){sub 2}SO{sub 4} aqueous electrolyte. The capacitance increased by about 8.1% of initial capacitance after 200 cycles at a current density of 100 mA cm{sup -2}.

  14. In operando X-ray studies of the conversion reaction in Mn3O4...

    Office of Scientific and Technical Information (OSTI)

    of the conversion reaction in Mn3O4 lithium battery anodes Citation Details ... energy storage (including batteries and capacitors), hydrogen and fuel ...

  15. Phase stability of the SrMnO[subscript 3] hexagonal perovskite...

    Office of Scientific and Technical Information (OSTI)

    SrMnOsubscript 3 hexagonal perovskite system at high pressure and temperature Citation ... Country of Publication: United States Language: ENGLISH Word Cloud More Like This Full ...

  16. Los Alamos in the News - 2015

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    Los Alamos in the News - 2015 Read about what other news sources are saying about Los Alamos science achievements. Mars landscape Mars Rover finds changing rocks, surprising scientists As NASA's Curiosity rover treks up a three-mile-high mountain on Mars, the rocks are changing. Back on Earth, scientists analyzing the data realized this was something different: It turned out to be the first of the high-silica rocks. - 12/24/15 Dying conifers, particularly ponderosa pine (Pinus ponderosa) and

  17. Los Alamos shipments to Waste Control Specialists

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    8, 2014 Los Alamos shipments to Waste Control Specialists To date, Waste Control Specialists (WCS), a facility in Andrews, Texas, has received and processed seven shipments of defense-generated transuranic waste from Los Alamos National Laboratory. Members of WIPP's Central Characterization Project mobile loading unit and crew went to WCS to safely unload the disposal containers. Plans include completing up to 10 shipments per week to WCS. All shipments are using WIPP's transportation protocols

  18. Signatures at Los Alamos National Laboratory

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    Signatures at Los Alamos National Laboratory Projects that involve signatures are taking place in every corner of the Laboratory. Top. One of the world's most powerful computers, Cielo is a Cray Computing system and a project of ACES, the New Mexico Alliance for Computing at Extreme Scale, a joint project of Sandia and Los Alamos na- tional laboratories. Cielo is the next-generation capability-class platform for the Advanced Simulation and Computing Program, and it allows signa- ture modeling

  19. Los Alamos Space Weather Summer School

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    Overview Program Details Local Information Apply Application Process Eligibility Criteria General Information for Applicants Information for Non-U.S Citizens Mentors, Projects Lectures Papers, Reports Photos NSEC » CSES » Space Weather Summer School Los Alamos Space Weather Summer School Summer 2018 Contacts Director Misa Cowee Email Administrative Assistant Lynea Koshar Email Request more information Email Los Alamos Space Weather Summer School 4:05 PLEASE NOTE: The next session will be

  20. Los Alamos identifies internal material control issue

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    Internal material control issue Los Alamos identifies internal material control issue The error relates to internal inventory and accounting that documents movement of sensitive materials within a small portion of Technical Area 55. February 26, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and

  1. Los Alamos names Laboratory Fellows for 2015

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    Los Alamos names Laboratory Fellows for 2015 Los Alamos names Laboratory Fellows for 2015 The honorees are Michael Bernardin, Avadh Saxena, Carlos Tome and Piotr Zelenay. January 27, 2016 Piotr Zelenay, Carlos Tome, Michael Bernardin and Avadh Saxena Piotr Zelenay, Carlos Tome, Michael Bernardin and Avadh Saxena Contact Nick Njegomir Communications Office (505) 665-9394 Email "The Laboratory Fellows Organization recognizes researchers for innovative scientific and technical advances in

  2. Los Alamos research and leadership prizes awarded

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    Research and leadership prizes awarded Los Alamos research and leadership prizes awarded Commendations for exemplary scientific research and leadership have been bestowed upon Fernando Garzon, Cristian Batista and Irene Beyerlein, by the Laboratory Fellows organization. November 20, 2012 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable

  3. Los Alamos scientist receives prestigious fellowship

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    Los Alamos scientist receives prestigious fellowship Los Alamos scientist receives prestigious fellowship The American Association for the Advancement of Science (AAAS) has awarded the distinction of Fellow to Dave Morris. January 11, 2016 Dave Morris Dave Morris Contact Nick Njegomir Communications Office (505) 665-9394 Email "The AAAS fellowship is a great honor that recognizes Dave's prominence as a chemistry researcher and a scientific leader," said Carol Burns, Deputy Principal

  4. Los Alamos supercomputer remains fastest in world

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

    Supercomputer remains fastest in world Los Alamos supercomputer remains fastest in world The latest list of the TOP500 computers in the world continued to place the Roadrunner supercomputer as fastest in the world running the LINPACK benchmark. November 18, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma

  5. Los Alamos wins 2008 Pollution Prevention awards

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

    2008 Pollution Prevention awards Los Alamos wins 2008 Pollution Prevention awards Winner of two Best-in-Class Pollution Prevention awards and six Environmental Stewardship awards from the National Nuclear Security Administration. February 7, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new

  6. LOS ALAMOS, N.M., Dec. 22, 2014-Los Alamos National Laboratory today

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

    science news of 2014 December 22, 2014 Biosurveillance, secure computing, alternative energy, unique capabilities highlight the year LOS ALAMOS, N.M., Dec. 22, 2014-Los Alamos National Laboratory today announced its annual top science stories of 2014. The 12 stories selected from diverse disciplines supporting Los Alamos's national security mission range from transferring fool-proof computer encryption techniques to market, to using social media for forecasting diseases, creating a virtual human

  7. LOS ALAMOS, N.M., Feb. 23, 2015-Nine Los Alamos National Laboratory scientists

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

    join prestigious ranks of APS fellows February 23, 2015 LOS ALAMOS, N.M., Feb. 23, 2015-Nine Los Alamos National Laboratory scientists are new Fellows of the American Physical Society. Cristian Batista, Malcolm Boshier, Dana Dattelbaum, Stephen Doorn, Michelle Espy, George Rodriguez, Avadh Saxena, Sergei Tretiak and Lin Yin are the new honorees. "Selection as American Physical Society fellows is de facto proof of the vibrant engagement Los Alamos scientists are having with the larger

  8. LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory

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

    Domestic production of medical isotope Mo-99 moves a step closer May 13, 2013 Los Alamos team produces molybdenum-99 from irradiation of low enriched uranium solution LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory announced that for the first time, irradiated low-enriched uranium (LEU) fuel has been recycled and reused for molybdenum-99 (Mo-99) production, with virtually no losses in Mo-99 yields or uranium recovery. This demonstrates the viability of the separation

  9. LOS ALAMOS, N.M., Nov. 10, 2015-Two Los Alamos National Laboratory employees

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

    Helping New Mexico small businesses earns recognition for Los Alamos National Lab employees November 10, 2015 Program provides access to technical expertise and laboratory capabilities LOS ALAMOS, N.M., Nov. 10, 2015-Two Los Alamos National Laboratory employees were recently recognized in an awards ceremony for providing their technical expertise and access to lab capabilities to help small businesses through the New Mexico Small Business Assistance Program. Don Quintana, a group leader within

  10. LOS ALAMOS, New Mexico, August 20, 2010-Los Alamos National Laboratory

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

    employees collect backpacks, school supplies for area school children August 20, 2010 LOS ALAMOS, New Mexico, August 20, 2010-Los Alamos National Laboratory employees donated more than 1,000 backpacks and thousands of school supplies, including pencils, pens, and notebooks during the Lab's annual School Supply Drive. The drive culminated in a Back-to-School Bash in downtown Los Alamos earlier this week that included a 3-kilometer fun walk and run and a backpack-stuffing contest where teams of

  11. LOS ALAMOS, New Mexico, December 14, 2010-Los Alamos National Laboratory

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

    selects local small business for post-Recovery Act cleanup contract December 14, 2010 Company will remove buried waste pipes from historic Cold War site LOS ALAMOS, New Mexico, December 14, 2010-Los Alamos National Laboratory today announced it has selected a local small business, Los Alamos Technical Associates (LATA), to perform follow-on cleanup work through 2014 at the site of the world's first large-scale plutonium processing lab. The approximately $8 million contract calls for removal of

  12. LOS ALAMOS, New Mexico, December 16, 2010-Los Alamos National Laboratory

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

    record year for environmental cleanup December 16, 2010 New LANL marks set for field investigations, shipments to WIPP LOS ALAMOS, New Mexico, December 16, 2010-Los Alamos National Laboratory finished 12 months worth of environmental cleanup by breaking LANL records in several areas as fiscal year 2010 ended. Los Alamos personnel conducted more field investigations and cleanup campaigns than ever and completed a record number of Lab shipments to the Waste Isolation Pilot Plant (WIPP) in southern

  13. LOS ALAMOS, New Mexico, January 7, 2009-Los Alamos National Laboratory (LANL)

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

    Venture Acceleration Fund recipients January 7, 2009 LOS ALAMOS, New Mexico, January 7, 2009-Los Alamos National Laboratory (LANL) has selected Retriever Technology, Elemetric Instruments, Star Cryoelectronics, and Veezyon as recipients of awards from the Los Alamos National Security, LLC Venture Acceleration Fund. The Laboratory's Venture Acceleration Fund provides investments of up to $100,000 to regional entrepreneurs, companies, investors, or strategic partners that use LANL technology or

  14. LOS ALAMOS, New Mexico, June 11, 2010-Los Alamos National Laboratory scientists

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

    SAGE mission to Venus June 11, 2010 Top scientists aim for Venus planetary lander project LOS ALAMOS, New Mexico, June 11, 2010-Los Alamos National Laboratory scientists have developed instruments for Earth, the Moon, the Sun, Mars, Saturn, interstellar space, and the driving solar wind that flies between the planets. Now they're setting their sights on the planet Venus. As part of a proposed NASA mission called the Surface and Atmosphere Geochemical Explorer (SAGE), Los Alamos researchers are

  15. LOS ALAMOS, New Mexico, March 10, 2009-Los Alamos National Laboratory has

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

    awards Recovery Act contract worth up to $100 million March 10, 2010 Small business preselected for waste disposal work LOS ALAMOS, New Mexico, March 10, 2009-Los Alamos National Laboratory has selected a small business to perform up to $100 million in waste transportation and disposal work under the American Reinvestment and Recovery Act, the Lab announced today. TerranearPMC, LLC, a Texas company with a Los Alamos office and a long history of supporting LANL environmental work, will haul

  16. LOS ALAMOS, New Mexico, March 31, 2010-A Los Alamos National Laboratory

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

    Carbon nanostructures-elixir or poison? March 31, 2010 Los Alamos researchers find a case where size really does matter LOS ALAMOS, New Mexico, March 31, 2010-A Los Alamos National Laboratory toxicologist and a multidisciplinary team of researchers have documented potential cellular damage from "fullerenes"-soccer-ball-shaped, cage-like molecules composed of 60 carbon atoms. The team also noted that this particular type of damage might hold hope for treatment of Parkinson's disease,

  17. Los Alamos, New Mexico, December 14, 2009-Los Alamos National Laboratory

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

    LANL pathogen detector gains corporate partner December 14, 2009 Optical biosensor uses tiny laser to detect range of pathogens Los Alamos, New Mexico, December 14, 2009-Los Alamos National Laboratory has executed an agreement with Biomagnetics Diagnostics Corporation (BMGP) for the further development of a diagnostic tool known as an optical biosensor. Los Alamos, whose staff developed the prototype bench-top and hand-held biosensors for the detection of human and animal pathogens, has provided

  18. Los Alamos, New Mexico, September 8, 2009- Los Alamos National Laboratory scientists

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

    Artificial" brains, electrical grids, and disease modeling: Los Alamos science discoveries unveiled September 15 September 8, 2009 Los Alamos, New Mexico, September 8, 2009- Los Alamos National Laboratory scientists will share their discoveries with the public and their peers at the Laboratory's first LDRD (Laboratory-Directed Research and Development) Day September 15. More than 40 researchers who participated in a spirited Labwide competition to earn funding through the National Nuclear

  19. Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National Laboratory

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

    Drought-induced tree mortality accelerating in forests May 19, 2015 Los Alamos' paper published in Nature Climate Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National Laboratory have found that drought and heat-induced tree mortality is accelerating in many forest biomes as a consequence of a warming climate in their paper "Darcy's law predicts widespread forest mortality under climate warming," published in the journal Nature Climate Change. "The warming

  20. LOS ALAMOS, N.M., Dec. 17, 2015-Scientists at Los Alamos National...

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

    2015-Scientists at Los Alamos National Laboratory have developed a new, more thorough method for detecting underground nuclear explosions (UNEs) by coupling two fundamental...

  1. LOS ALAMOS, N.M., July 27, 2015- Four Los Alamos National Laboratory...

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

    complicated problem by identifying, retrieving and analyzing smaller subsets of data. Hugh Greenberg, of the Laboratory's System Integration group, and his team of Los Alamos...

  2. LOS ALAMOS, N.M., July 12, 2013 - Los Alamos National Laboratory Director

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

    Importance of science education to national security will be Los Alamos director's topic at TEDxABQ July 12, 2013 Importance of science education to national security will be Los Alamos director's topic at TEDxABQ LOS ALAMOS, N.M., July 12, 2013 - Los Alamos National Laboratory Director Charlie McMillan will be one of 17 speakers at this year's TEDxABQ, event organizers announced this week. TEDxABQ, scheduled for Saturday, September 7 at Popejoy Hall, is an independently organized event in

  3. LOS ALAMOS, N.M., July 27, 2015- Four Los Alamos National Laboratory projects

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

    Los Alamos projects selected as R&D 100 Award finalists July 27, 2015 LOS ALAMOS, N.M., July 27, 2015- Four Los Alamos National Laboratory projects have been selected as finalists for the 2015 R&D 100 awards, which honor the top 100 proven technological advances of the past year as determined by a panel selected by R&D Magazine. The Los Alamos finalists are: LARS: Lab-scale Asynchronous Radiographic System, PipeLIBS: A Self-Contained Elemental Analysis Tool for the Oil Industry,

  4. LOS ALAMOS, New Mexico, May 1, 2013-Los Alamos National Laboratory scientist

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

    Exploring Mars with Curiosity subject of next Los Alamos National Laboratory Frontiers in science lectures May 1, 2013 LOS ALAMOS, New Mexico, May 1, 2013-Los Alamos National Laboratory scientist Roger Wiens talks about the NASA Mars Curiosity rover, its journey to Mars and some of its discoveries on the Red Planet thus far in a series of Frontiers in Science presentations beginning May 7 in the Duane Smith Auditorium at Los Alamos High School. Wiens repeats his talk on: * May 9 at the New

  5. LOS ALAMOS, NEW MEXICO, August 22, 2012-Nathan Moody of Los Alamos

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

    engineer selected to participate in NAE's 2012 "Frontiers of Engineering" symposium August 22, 2012 - 2 - Nathan Moody, specialist in electromagnetic radiation, honored LOS ALAMOS, ...

  6. WILLIAM C. LOUIS Los Alamos National Laboratory M.S. H846 Los

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

    WILLIAM C. LOUIS Los Alamos National Laboratory M.S. H846 Los Alamos, NM 87545 louis@lanl.gov, 505/667-6723 EMPLOYMENT Technical Staff Member, Los Alamos National Laboratory, P-Division, 1987-present Assistant Professor, Princeton University, 1981-1987 Research Associate, Rutherford Laboratory, 1978-1981 POSITIONS LANL Program Manager for Nuclear Physics, 2004-2009 Co-Spokesperson of the BooNE Neutrino Experiment at Fermilab, 1998-2007 Spokesperson of the LSND Neutrino Experiment at Los Alamos,

  7. LOS ALAMOS, N.M., June 18, 2014-Los Alamos National Laboratory...

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

    Fukushima with cosmic rays should speed cleanup June 18, 2014 Los Alamos to partner with ... to safely peer inside the cores of the Fukushima Daiichi reactors and create ...

  8. LOS ALAMOS, N.M., Oct. 31, 2013-Los Alamos National Laboratory...

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

    the Deaf, 1060 Cerrillos Road, Santa Fe * Nov. 15, Taos Convention Center, 120 Civic Plaza Drive, Taos. Sponsored by the Fellows of Los Alamos National Laboratory, the Frontiers...

  9. LOS ALAMOS, New Mexico, May 4, 2009- Los Alamos National Laboratory...

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

    Fellows for their contributions to mathematics May 4, 2009 LOS ALAMOS, New Mexico, May ... Wendroff are new Fellows of the Society for Industrial and Applied Mathematics (SIAM). ...

  10. International Falls, MN Natural Gas Pipeline Imports From Canada (Dollars

    U.S. Energy Information Administration (EIA) Indexed Site

    per Thousand Cubic Feet) Dollars per Thousand Cubic Feet) International Falls, MN Natural Gas Pipeline Imports From Canada (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 1.71 2.03 2.00 2.33 2000's 2.77 4.85 3.01 -- -- 11.20 -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages:

  11. International Falls, MN Natural Gas Pipeline Imports From Canada (Million

    U.S. Energy Information Administration (EIA) Indexed Site

    Cubic Feet) Million Cubic Feet) International Falls, MN Natural Gas Pipeline Imports From Canada (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 6,373 6,544 6,103 4,857 2000's 3,022 617 602 0 0 22 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages: U.S.

  12. Electrochemical performance studies of MnO{sub 2} nanoflowers recovered from spent battery

    SciTech Connect (OSTI)

    Ali, Gomaa A.M.; Tan, Ling Ling; Jose, Rajan; Yusoff, Mashitah M.; Chong, Kwok Feng

    2014-12-15

    Highlights: MnO{sub 2} is recovered from spent zinccarbon batteries as nanoflowers structure. Recovered MnO{sub 2} nanoflowers show high specific capacitance. Recovered MnO{sub 2} nanoflowers show stable electrochemical cycling up to 900 cycles. Recovered MnO{sub 2} nanoflowers show low resistance in EIS data. - Abstract: The electrochemical performance of MnO{sub 2} nanoflowers recovered from spent household zinccarbon battery is studied by cyclic voltammetry, galvanostatic charge/discharge cycling and electrochemical impedance spectroscopy. MnO{sub 2} nanoflowers are recovered from spent zinccarbon battery by combination of solution leaching and electrowinning techniques. In an effort to utilize recovered MnO{sub 2} nanoflowers as energy storage supercapacitor, it is crucial to understand their structure and electrochemical performance. X-ray diffraction analysis confirms the recovery of MnO{sub 2} in birnessite phase, while electron microscopy analysis shows the MnO{sub 2} is recovered as 3D nanostructure with nanoflower morphology. The recovered MnO{sub 2} nanoflowers exhibit high specific capacitance (294 F g{sup ?1} at 10 mV s{sup ?1}; 208.5 F g{sup ?1} at 0.1 A g{sup ?1}) in 1 M Na{sub 2}SO{sub 4} electrolyte, with stable electrochemical cycling. Electrochemical data analysis reveal the great potential of MnO{sub 2} nanoflowers recovered from spent zinccarbon battery in the development of high performance energy storage supercapacitor system.

  13. Thermoelectric properties of nano-meso-micro β-MnO₂ powders...

    Office of Scientific and Technical Information (OSTI)

    Additional Journal Information: Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 1931-7573 Publisher: Springer Research Org: Los Alamos National Laboratory (LANL), Los ...

  14. Lattice Mn3+ Behaviors in Li4Ti5O12/LiNi0.5Mn1.5O4 Full Cells

    SciTech Connect (OSTI)

    Zheng, Jianming; Xiao, Jie; Nie, Zimin; Zhang, Jiguang

    2013-05-28

    High voltage spinels LiNi0.5Mn1.5O4 (LNMO) with different contents of residual Mn3+ ions have been evaluated in full cells using Li4Ti5O12 (LTO) as standard anode. Greatly improved cycling stability has been observed for all spinels in LTO-limited full cell, compared with those in LNMO-limited ones, while the underlying mechanisms are quite different. It has been discovered that the participation of active Mn3+ in the extended cycling and thus its observable contribution to Li+ diffusion kinetics depend on the limiting electrode and the sufficiency of Li+ ions. Potential Mn dissolution has also been discussed to identify the key factors that need to be considered to construct full cells employing high voltage spinel as the cathode.

  15. Chief Scientist, Los Alamos National Laboratory - Center for Integrated

    National Nuclear Security Administration (NNSA)

    Nanotechnologies | National Nuclear Security Administration | (NNSA) Chief Scientist, Los Alamos National Laboratory - Center for Integrated Nanotechnologies Samuel "Tom" Picraux Samuel Picraux November 2009 Los Alamos National Laboratory Fellow Six Los Alamos scientists have been designated 2009 Los Alamos National Laboratory Fellows in recognition of sustained, outstanding scientific contributions and exceptional promise for continued professional achievement. The title of Fellow

  16. Independent Oversight Review, Los Alamos National Laboratory- January 2012

    Broader source: Energy.gov [DOE]

    Review of the Los Alamos National Laboratory Waste Characterization, Reduction, and Repackaging Facility Fire Suppression System

  17. Enterprise Assessments Review, Los Alamos National Laboratory- November 2014

    Office of Energy Efficiency and Renewable Energy (EERE)

    Review of the Los Alamos National Laboratory Weapons Engineering Tritium Facility Fire Suppression System

  18. Enforcement Letter, Los Alamos National Security, LLC- February 16, 2007

    Broader source: Energy.gov [DOE]

    Issued to the University of California related to Operational Performance at the Los Alamos National Laboratory

  19. Independent Oversight Review, Los Alamos National Laboratory- July 2012

    Office of Energy Efficiency and Renewable Energy (EERE)

    Review of the Los Alamos National Laboratory Implementation Verification Review at Technical Area-55

  20. Los Angeles Cleantech Incubator: SoCal Edge

    Broader source: Energy.gov [DOE]

    Lead Performer: LA Cleantech Incubator (LACI) -- Los Angeles, CA Partners: LA Better Buildings Challenge (LABBC)

  1. Magnetic and structural properties of Zn doped MnV{sub 2}O{sub 4}

    SciTech Connect (OSTI)

    Shahi, Prashant; Shukla, K. K.; Singh, Rahul; Chatterjee, Sandip; Das, A.; Ghosh, A. K.; Nigam, A. K.

    2014-04-24

    The magnetization, Neutron diffraction and X-ray diffraction of Zn doped MnV{sub 2}O{sub 4} as a function of temperature have been measured. It has been observed, with increase of Zn the non-linear orientation of Mn spins with the V spins will decrease which effectively decrease the structural transition temperature more rapidly than Curie Temperature.

  2. Spin correlations and electron transport in MnBi:Au films

    SciTech Connect (OSTI)

    Kharel, P.; Skomski, R.; Sellmyer, D. J.

    2011-04-01

    The structural, magnetic, and electron transport properties of Mn{sub 55-x}Au{sub x}Bi{sub 45} (x = 0, 4.5) thin films prepared by magnetron sputtering have been investigated. The magnetization of the MnBi films decreases and the coercivity increases due to Au doping. The temperature dependence of resistivity between 2 to 300 K shows that the films are metallic but the 4.5% Au-doped film shows a Kondo behavior with resistance minimum at 10.2 K. The magnetoresistance is anisotropic and the positive transverse magnetoresistance is significantly enhanced (16.3% at 70 kOe) by Au doping. We interpret these data in terms of a model in which Au atoms preferentially substitute for Mn atoms on the Mn lattice, and some Mn atoms are displaced to interstitial sites in the NiAs structure. These interstitial Mn atoms are coupled antiferromagnetically to the Mn atoms on the original Mn lattice leading to the large decrease in magnetization, Kondo effect, and the positive magnetoresistance.

  3. Room temperature spin-polarizations of Mn-based antiferromagnetic nanoelectrodes

    SciTech Connect (OSTI)

    Yamada, Toyo Kazu; Vazquez de Parga, Amadeo L.

    2014-11-03

    Antiferromagnets produce no stray field, and therefore, a tip electrode made of antiferromagnetic material has been considered to be the most suitable choice to measure such as magnetoresistance (MR) through single isolated magnetic nanoparticles, molecules, and ultrathin films. Spin polarizations (P) of antiferromagnetic 3-nm, 6-nm, and annealed 3-nm Mn films grown on W tips with a bcc(110) apex as well as bulk-NiMn tips were obtained at 300?K by measuring MR in ultrahigh vacuum by means of spin-polarized scanning tunneling microscopy using a layerwise antiferromagnetically stacking bct-Mn(001) film electrode. The Mn-coated tips with coverages of 3 and 6?nm exhibited P values of 1??1% and 3??2%, respectively, which tips likely contain ?- or strained Mn. With a thermal assist, the crystalline quality and the magnetic stability of the film could increase. The annealed tip exhibited P?=?9??2%. The bulk-NiMn tips exhibit spin polarizations of 0 or 6??2% probably depending on the chemical species (Mn or Ni) present at the apex of the tip. Fe-coated W tips were used to estimate the bct-Mn(001) film spin polarization.

  4. Site Determination and Magnetism of Mn Doping in Protein Encapsulated Iron Oxide Nanoparticles

    SciTech Connect (OSTI)

    Pool, V.; Klem, M.; Jolley, J.; Arenholz, E.A.; Douglas, T.; Young, M.; Idzerda, Y.U.

    2010-01-11

    Soft-X-ray absorption spectroscopy, soft-X-ray magnetic circular dichroism, and alternating current magnetic susceptibility were performed on 6.7 nm iron oxide nanoparticles doped with (5-33%) Mn grown inside the horse-spleen ferritin protein cages and compared to similarly protein encapsulated pure Fe-oxide and Mn-oxide nanoparticles to determine the site of the Mn dopant and to quantify the magnetic behavior with varying Mn concentration. The Mn dopant is shown to substitute preferentially as Mn{sup +2} and prefers the octahedral site in the defected spinel structure. The Mn multiplet structure for the nanoparticles is simpler than for the bulk standards, suggesting that the nanoparticle lattices are relaxed from the distortions present in the bulk. Addition of Mn is found to alter the host Fe-oxide lattice from a defected ferrimagnetic spinel structure similar to {gamma}-Fe{sub 2}O{sub 3} to an non-ferromagnetic spinel structure with a local Fe environment similar to Fe{sub 3}O{sub 4}.

  5. Impedance studies of the thin film LiMn2O4/electrolyteinterface

    SciTech Connect (OSTI)

    Striebel, Kathryn A.; Sakai, E.; Cairns, Elton J.

    2001-04-07

    Room-temperature impedance measurements of a thin-film LiMn2O4/LiPF6-EC-DMC interface have been used to identify the spontaneous formation Li2Mn2O4 at the interface at room temperature at voltages of 3.7 and higher. The impedance of the LiMn2O4 films exhibited two time constants: at about 14 kHz and 60 to 200 Hz. The high frequency loop is dependent on film morphology and was attributed to the substrate/oxide interface. The low frequency behavior was dependent on both state-of-charge (SOC) and time at a given SOC. At full charge the impedance in this electrolyte was stable at room temperature over several days. At high lithium contents, film OCV and impedance tended to grow logarithmically with time, with lower rates for lower Mn3+ content in the film. The increased impedance was removed by oxidation of the film to 4.5V vs. Li/Li+. The observations are consistent with a reversible disproportionation of part of the LiMn2O4 into Li2Mn2O4 and a lithium-deficient spinel. With extended constant current cycling part of the Li2Mn2O4 degrades to the Mn2O3 and the process is no longer reversible.

  6. Townsite Cleanup Continues in Los Alamos Canyon | Department of Energy

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

    Townsite Cleanup Continues in Los Alamos Canyon Townsite Cleanup Continues in Los Alamos Canyon July 1, 2016 - 9:00am Addthis LOS ALAMOS, N.M.,-The Department of Energy's (DOE) Environmental Management Los Alamos Field Office (EM-LA) and Los Alamos National Security, LLC (LANS) is moving forward with the removal of contaminated soil along the south-facing slopes of Los Alamos Canyon adjacent to the Los Alamos Townsite. To view official announcement click here. Addthis Related Articles EM-LA 2015

  7. Electric-Field Modulation of Curie Temperature in (Ga, Mn)As Field-Effect Transistor Structures with Varying Channel Thickness and Mn Compositions

    SciTech Connect (OSTI)

    Nishitani, Y.; Endo, M.; Chiba, D.; Matsukura, F.; Ohno, H.

    2010-01-04

    We have investigated the change of T{sub C} of ferromagnetic semiconductor (Ga, Mn)As by changing hole concentration p. The field effect transistor structure was utilized to change p. The relation T{sub C}propor top{sup 0.2} is obtained for three samples, despite the difference of their Mn composition and thickness, indicating that the relation holds over 2 decades of p.

  8. K and Mn co-doped BaCd{sub 2}As{sub 2}: A hexagonal structured...

    Office of Scientific and Technical Information (OSTI)

    K and Mn co-doped BaCdsub 2Assub 2: A hexagonal structured bulk diluted magnetic semiconductor with large magnetoresistance Citation Details In-Document Search Title: K and Mn ...

  9. Scanning tunneling microscopy reveals LiMnAs is a room temperature anti-ferromagnetic semiconductor

    SciTech Connect (OSTI)

    Wijnheijmer, A. P.; Koenraad, P. M.; Marti, X.; Holy, V.; Cukr, M.; Novak, V.; Jungwirth, T.

    2012-03-12

    We performed scanning tunneling microscopy and spectroscopy on a LiMnAs(001) thin film epitaxially grown on an InAs(001) substrate by molecular beam epitaxy. While the in situ cleavage exposed only the InAs(110) non-polar planes, the cleavage continued into the LiMnAs thin layer across several facets. We combined both topography and current mappings to confirm that the facets correspond to LiMnAs. By spectroscopy we show that LiMnAs has a band gap. The band gap evidenced in this study, combined with the known Neel temperature well above room temperature, confirms that LiMnAs is a promising candidate for exploring the concepts of high temperature semiconductor spintronics based on antiferromagnets.

  10. Magnetic properties and photoabsorption of the Mn-doped CeO{sub 2} nanorods

    SciTech Connect (OSTI)

    Xia, Chuanhui; Science College of Chongqing Jiaotong University, Chongqing 400074 ; Hu, Chenguo; Chen, Peng; Wan, Buyong; He, Xiaoshan; Tian, Yongshu; Chongqing Communication College, Chongqing 400035

    2010-07-15

    Mn-doped CeO{sub 2} nanorods have been prepared from CeO{sub 2} particles through a facile composite-hydroxide-mediated (CHM) approach. The analysis from X-ray photoelectron spectroscopy indicates that the manganese doped in CeO{sub 2} exists as Mn{sup 2+}. The magnetic measurement of the Mn-doped CeO{sub 2} nanorods exhibits an enhanced ferromagnetic property at room temperature with a remanence magnetization (Mr) of 1.36 x 10{sup -3} emu/g and coercivity (Hc) of 22 Oe. Comparative UV-visible spectra reveal the shift of the absorption peak of the CeO{sub 2} from ultraviolet region to visible light region after being doped with Mn. The room temperature ferromagnetic properties and light absorption of the Mn-doped CeO{sub 2} nanorods would have potential applications in photocatalysis and building of photovoltaic devices.

  11. Giant atomic displacement at a magnetic phase transition in metastable Mn3O4

    SciTech Connect (OSTI)

    Hirai, Shigeto; Moreira Dos Santos, Antonio F; Shapiro, Max C; Molaison, Jamie J; Pradhan, Neelam; Guthrie, Malcolm; Tulk, Christopher A; Fisher, Ian R; Mao, Wendy

    2013-01-01

    We present x-ray, neutron scattering, and heat capacity data that reveal a coupled first-order magnetic and structural phase transition of the metastable mixed-valence postspinel compound Mn3O4 at 210 K. Powder neutron diffraction measurements reveal a magnetic structure in which Mn3+ spins align antiferromagnetically along the edge-sharing a axis, with a magnetic propagation vector k = [1/2,0,0]. In contrast, the Mn2+ spins, which are geometrically frustrated, do not order until a much lower temperature. Although the Mn2+ spins do not directly participate in the magnetic phase transition at 210 K, structural refinements reveal a large atomic shift at this phase transition, corresponding to a physical motion of approximately 0.25 angstrom, even though the crystal symmetry remains unchanged. This "giant" response is due to the coupled effect of built-in strain in the metastable postspinel structure with the orbital realignment of the Mn3+ ion.

  12. National Security Science April 2016 Los Alamos National Laboratory

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

    April 2016 Los Alamos National Laboratory SCIENCE NATIONAL SECURITY In this issue Los Alamos Leads Explosives-Science Research The Hurt-Locker School: Los Alamos's Advanced Homemade Explosives Course Lab Scientists Analyze North Korea's "Hydrogen Bomb" Test April 2016 Los Alamos National Laboratory Los Alamos National Laboratory has been at the forefront of high-explosives research since the Manhattan Project in 1943. The science of high-explosive performance is central to stockpile

  13. Enforcement Letter, Los Alamos National Security, LLC | Department of

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

    Energy Los Alamos National Security, LLC Enforcement Letter, Los Alamos National Security, LLC September 18, 2015 Security Enforcement Letter issued to Los Alamos National Security, LLC On September 18, 2015, the U.S. Department of Energy (DOE) Office of Enterprise Assessments' Office of Enforcement issued an Enforcement Letter (SEL-2015-02) to Los Alamos National Security, LLC relating to the unauthorized disclosure of classified information at the Los Alamos National Laboratory.

  14. FPD's Perspective Photos - Los Alamos National Labratory - NISA |

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

    Department of Energy FPD's Perspective Photos - Los Alamos National Labratory - NISA FPD's Perspective Photos - Los Alamos National Labratory - NISA 2014 DOE Project Management Workshop 30_FPD Perspective_Photos.pdf (11.13 MB) More Documents & Publications FPD's Perspective Talking Points - Los Alamos National Labratory - NISA Enforcement Letter, Los Alamos National Security, LLC - May 15, 2008 Consent Order, Los Alamos National Security, LLC

  15. Los Alamos's portable MRI machine may benefit New Mexicans

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

    Los Alamos's portable MRI machine Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Los Alamos's portable MRI machine may benefit New Mexicans New technology may serve New Mexico's rural communities. April 4, 2016 Los Alamos experts have developed a smaller, less expensive MRI system to serve the battlefield setting and beyond. Los Alamos experts, engineer Al Urbaitis and physicist Per

  16. Record amount pledged to 2016 Los Alamos Employees' Scholarship Fund

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

    drive 2016 Los Alamos Employees' Scholarship Fund drive Record amount pledged to 2016 Los Alamos Employees' Scholarship Fund drive Employees pledged a record $393,419 during the recently completed 2016 Los Alamos Employees' Scholarship Fund (LAESF) drive. July 19, 2016 Left to right: Katherine Wang of Los Alamos High School, Solomon Sindelar of New Mexico Military Institute and Arasely Rodriguez of Taos High School, 2016 Los Alamos Employees' Scholarship Fund Gold-level scholarship

  17. Independent Oversight Review, Los Alamos National Laboratory - November

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

    2013 | Department of Energy National Laboratory - November 2013 Independent Oversight Review, Los Alamos National Laboratory - November 2013 November 2013 Review of the Los Alamos National Laboratory Radiological Controls Activity-Level Implementation This report documents the results of an independent oversight review of radiological protection program activity-level implementation performed by Los Alamos National Security and its subcontractors at Los Alamos National Laboratory, Los Alamos

  18. Internship Opportunities for Los Alamos Employees' Scholarship Fund

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

    Recipients Internship Opportunities for Los Alamos Employees' Scholarship Fund Recipients Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Internship Opportunities for Los Alamos Employees' Scholarship Fund Recipients A personal message from Richard Marquez, Executive Director, Los Alamos National Laboratory June 1, 2014 Richard Marquez, Executive Director, Los Alamos National

  19. DOE - Office of Legacy Management -- Los Alamos Underground Med Pipelines -

    Office of Legacy Management (LM)

    NM 02 Los Alamos Underground Med Pipelines - NM 02 FUSRAP Considered Sites Site: Los Alamos Underground Med Pipelines ( NM.02 ) Eliminated - Remedial action being performed by the Los Alamos Area Office of the DOE Albuquerque Operations Office Designated Name: Not Designated Alternate Name: Los Alamos County Industrial Waste Lines NM.02-1 Location: Los Alamos , New Mexico NM.02-1 Evaluation Year: 1986 NM.02-1 Site Operations: From 1952 to 1965, underground pipelines or industrial waste lines

  20. Compliance Order, Los Alamos National Security, LLC - July 12, 2007 |

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

    Department of Energy Compliance Order, Los Alamos National Security, LLC - July 12, 2007 Compliance Order, Los Alamos National Security, LLC - July 12, 2007 July 12, 2007 Issued to Los Alamos National Security, LLC related to the Unauthorized Reproduction and Removal of Classified Matter from the Los Alamos National Laboratory On July 12, 2007, the Secretary of Energy issued a Compliance Order to Los Alamos National Security, LLC requiring the contractor to implement specific corrective

  1. Publications of Los Alamos Research, 1983

    SciTech Connect (OSTI)

    Sheridan, C.J.; McClary, W.J.; Rich, J.A.; Rodriguez, L.L.

    1984-10-01

    This bibliography is a compilation of unclassified publications of work done at the Los Alamos National Laboratory for 1983. Papers published in 1982 are included regardless of when they were actually written. Publications received too late for inclusion in earlier compilations have also been listed. Declassification of previously classified reports is considered to constitute publication. All classified issuances are omitted - even those papers, themselves unclassified, which were published only as part of a classified document. If a paper was published more than once, all places of publication are included. The bibliography includes Los Alamos National Laboratory reports, papers released as non-Laboratory reports, journal articles, books, chapters of books, conference papers either published separately or as part of conference proceedings issued as books or reports, papers publishd in congressional hearings, theses, and US patents. Publications by Los Alamos authors that are not records of Laboratory-sponsored work are included when the Library becomes aware of them.

  2. Publications of Los Alamos research 1980

    SciTech Connect (OSTI)

    Salazar, C.A.; Willis, J.K.

    1981-09-01

    This bibliography is a compilation of unclassified publications of work done at the Los Alamos National Laboratory for 1980. Papers published in 1980 are included regardless of when they were actually written. Publications received too late for inclusion in earlier compilations have also been listed. Declassification of previously classified reports is considered to constitute publication. All classified issuances are omitted-even those papers, themselves unclassified, which were published only as part of a classified document. If a paper was pubished more than once, all places of publication are included. The bibliography includes Los Alamos National Laboratory reports, papers released as non-laboratory reports, journal articles, books, chapters of books, conference papers published either separately or as part of conference proceedings issued as books or reports, papers published in congressional hearings, theses, and US patents. Publications by Los Alamos authors that are not records of Laboratory-sponsored work are included when the Library becomes aware of them.

  3. Los Alamos is developing powerful medical tool

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

    Portable MRI Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Los Alamos is developing powerful medical tool Portable MRI to aid wounded soldiers and less affluent regions June 1, 2015 Lighter-weight MRI device uses low-power magnetic fields to image the brain and other soft-tissue anatomy. Lighter-weight MRI device uses low-power magnetic fields to image the brain and other soft-tissue

  4. Wildfre Mitigation at Los Alamos National Laboratory

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

    Wildfre Mitigation at Los Alamos National Laboratory Background Established in 1943, Los Alamos National Laboratory consists of 1,280 buildings in 47 technical areas spread out over 37 square miles. The complex includes 11 nuclear facilities and more than 10,000 workers. In the past, large wildfres in the area, including the La Mesa Fire (1977), the Dome Fire (1996), the Oso Fire (1998), the Cerro Grande Fire (2000), and the Las Conchas Fire (2011) demonstrate that forests on and surrounding the

  5. Ferromagnetic (Ga,Mn)As nanostructures for spintronic applications

    SciTech Connect (OSTI)

    Wosinski, Tadeusz; Andrearczyk, Tomasz; Figielski, Tadeusz; Makosa, Andrzej; Wrobel, Jerzy; Sadowski, Janusz

    2013-12-04

    Magneto-resistive, cross-like nanostructures have been designed and fabricated by electron-beam lithography patterning and chemical etching from thin epitaxial layers of the ferromagnetic semiconductor (Ga,Mn)As. The nanostructures, composed of two perpendicular nanostripes crossing in the middle of their length, represent four-terminal devices, in which an electric current can be driven through any of the two nanostripes. In these devices, a novel magneto-resistive memory effect, related to a rearrangement of magnetic domain walls in the central part of the device, has been demonstrated. It consists in that the zero-field resistance of a nanostripe depends on the direction of previously applied magnetic field. The nanostructures can thus work as two-state devices providing basic elements of nonvolatile memory cells.

  6. Impedance analysis of MnCoCuO NTC ceramic

    SciTech Connect (OSTI)

    Song, S.G. . E-mail: song-ph0@wpmail.paisley.ac.uk; Ling, Z.; Placido, F.

    2005-07-12

    Impedance spectroscopy is often used to analyse the electrical properties of ceramic materials having high-resistive grain boundaries, such as ZnO and SrTiO{sub 3}. Fewer attempts have been made at using this technique for the analysis of inhomogeneous electronic ceramics consisting of grains with differing composition, such as those occurring in negative temperature coefficient (NTC) thermistors. In this study, we have attempted to adopt ac impedance spectroscopy together with other techniques to analyse an NTC thermistor ceramic material. An Mn, Co and Cu multielements transition metal oxide (MnCoCuO) ceramic was prepared by using homogeneous precipitation employing oxalic acid. This material displayed a typical NTC effect, showing an electrical resistance decrease with temperature when dc electrical measurement was performed. The ac impedance spectroscopy analysis showed that there were two peaks in impedance and conductance versus frequency plot. By using an alternative representation of impedance spectra Z'/f versus Z', three distinct relaxation frequency ranges were identified. They are believed to originate, respectively, from the electrode, phase 1 (rich-Cu phase) and phase 2 (poor-Cu phase) grains existing in this ceramic. SEM observation and EDX analysis clearly showed existence of two distinct phase grains. The resistance values were derived from phases 1 and 2 grains based on ac impedance data. The sum of the resistance values was in good agreement with that from dc measurement in the temperature range of 30-95 deg. C. The material constant, B, for the two phases was also calculated, giving 3100 and 3600 K for phases 1 and 2, respectively.

  7. LOS ALAMOS, N.M., Nov. 3, 2015-Nina Lanza, of Los Alamos National Laboratory's

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

    Hunting for meteorites in Antarctica November 3, 2015 Los Alamos scientist part of NASA's select few LOS ALAMOS, N.M., Nov. 3, 2015-Nina Lanza, of Los Alamos National Laboratory's Space and Remote Sensing group, was selected as one of eight members for the 2015-2016 field campaign of the Antarctica Search for Meteorites (ANSMET) program, which is supported by NASA. "These meteorites can help us understand the formation and evolution of our solar system," said Lanza. "They come

  8. LOS ALAMOS, N.M., Oct. 31, 2013-Los Alamos National Laboratory scientist

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

    Matter, antimatter and surviving the big bang is topic of Lab's next Frontiers in Science lecture October 31, 2013 Talk begins at 7 p.m. and open to public LOS ALAMOS, N.M., Oct. 31, 2013-Los Alamos National Laboratory scientist Vincenzo Cirigliano asks the question, How did we survive the big bang? in a series of Frontiers in Science lectures beginning Monday, Nov. 4, in the Duane Smith Auditorium at Los Alamos High School. "Particles and antiparticles were produced in equal numbers in the

  9. LOS ALAMOS, N.M., Sept. 17, 2015-Scientists at Los Alamos National Laboratory

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

    insights into HIV-1 vaccine design September 17, 2015 Los Alamos researchers model alternate ideas for an HIV vaccine LOS ALAMOS, N.M., Sept. 17, 2015-Scientists at Los Alamos National Laboratory have created a computational model that could change the way that researchers look at possibilities for an HIV-1 vaccine. "An effective HIV-1 vaccine has proven elusive, partly due to the difficulty of causing an immune response that can neutralize the diverse viral strains circulating in the human

  10. LOS ALAMOS, New Mexico, August 20, 2010-Los Alamos National Laboratory

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

    sets new record for waste shipments August 20, 2010 Each shipment moves LANL closer to cleanup LOS ALAMOS, New Mexico, August 20, 2010-Los Alamos National Laboratory set a new LANL record on Friday by completing its 132nd transuranic (TRU) waste shipment of fiscal year 2010 to the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. The shipment eclipsed last year's record total of 131 shipments, with five weeks still remaining in fiscal year 2010. "Removing this waste from Los

  11. Los Angeles | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Angeles NNSA to Participate in Aerial Radiation Training Exercise Long Beach, CA Areas The National Nuclear Security Administration (NNSA) Aerial Measuring System (AMS) in conjunction with the Los Angeles Sheriff Department and DoD Army will be participating in Prominent Hunt 15-2 using aerial radiation detection and measuring systems over the August 14th weekend. Agencies will

  12. Ab initio study of Fe{sub 2}MnZ (Al, Si, Ge) Heusler alloy using GGA approximation

    SciTech Connect (OSTI)

    Jain, Vivek Kumar Jain, Vishal Lakshmi, N. Venugopalan, K.

    2014-04-24

    Density functional theory based on FP-LAPW method used to investigate the electronic structure of Fe{sub 2}MnZ, shows that the total spin magnetic moment shows a trend consistent with the Slater–Pauling curve. The Fe and Mn magnetic moment depend on choice of Z element although the magnetic moment of Z element is negative and less than 0.1 μ{sub B}. Spin polarization calculations evidence 100% spin polarization for Fe{sub 2}MnSi. Fe{sub 2}MnAl and Fe{sub 2}MnGe show metallic behavior with 93%, 98% spin polarization.

  13. EA-1247: Electrical Power System Upgrades at Los Alamos National Laboratory, Los Alamos, New Mexico

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposal to upgrade the electrical power supply system for the U.S. Department of Energy Los Alamos National Laboratory to increase the...

  14. LOS ALAMOS, New Mexico, August 28, 2008-Physicists at Los Alamos...

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

    and helium. "It's really a question of the chicken and the egg," said coauthor Eric Bauer of Los Alamos. "Does superconductivity need magnetism in this state, or does magnetism...

  15. LOS ALAMOS, New Mexico, March 23, 2012-Los Alamos National Laboratory...

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

    to return to work. Any suspected illegal activity will be reported to the Los Alamos Police Department. "We're doing our best to meet our security objectives while minimizing...

  16. EA-1131: Relocation of Neutron Tube Target Loading Operation, Los Alamos Laboratory, Los Alamos, New Mexico

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of the proposal to relocate the Neutron Tube Target Loading operations at the U.S. Department of Energy Los Alamos National Laboratory in New Mexico from...

  17. On June 28, Los Alamos National Security, LLC and Los Alamos...

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

    Virginia spends her days bringing joy to other residents by visiting them and making origami animals to brighten their rooms. Irene Powell, RSVP Director in Los Alamos, sums it...

  18. On June 28, Los Alamos National Security, LLC and Los Alamos...

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

    Virginia will also be celebrating her 103 rd birthday in September - 2 - Virginia came to Los Alamos in 1947 and quickly became an active volunteer in Northern New Mexico. She ...

  19. LOS ALAMOS, New Mexico, June 3, 2010-Los Alamos National Laboratory...

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

    LANL part of national team creating "virtual" reactor for next-generation power LOS ... of Energy to create a "virtual" reactor that could lead to the next generation of ...

  20. EIS-0018: Continued Operation of Los Alamos Scientific Laboratory Site, Los Alamos, New Mexico

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy prepared this statement to assesses the potential cumulative environmental impacts associated with current, known future, and continuing activities at the Los Alamos Scientific Laboratory site.

  1. of Las Conchas Fire LOS ALAMOS, New Mexico, July 8, 2011-Los...

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

    closes road, trails for safety reasons; flooding and erosion control work under way July 8, 2011 Crews assessing damage and potential runoff effects of Las Conchas Fire LOS ALAMOS,...

  2. Quantum Anomalous Hall Effect in Hg_1-yMn_yTe Quantum Wells

    SciTech Connect (OSTI)

    Liu, Chao-Xing; Qi, Xiao-Liang; Dai, Xi; Fang, Zhong; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-19

    The quantum Hall effect is usually observed when the two-dimensional electron gas is subjected to an external magnetic field, so that their quantum states form Landau levels. In this work we predict that a new phenomenon, the quantum anomalous Hall effect, can be realized in Hg{sub 1-y}Mn{sub y}Te quantum wells, without the external magnetic field and the associated Landau levels. This effect arises purely from the spin polarization of the Mn atoms, and the quantized Hall conductance is predicted for a range of quantum well thickness and the concentration of the Mn atoms. This effect enables dissipationless charge current in spintronics devices.

  3. Recent progress of magnetocaloric effect and magnetic refrigerant materials of Mn compounds (invited)

    SciTech Connect (OSTI)

    Wada, H. Takahara, T.; Katagiri, K.; Ohnishi, T.; Soejima, K.; Yamashita, K.

    2015-05-07

    Magnetocaloric and related properties of Ru and Ni substituted (MnFe){sub 2}(PSi) are presented. It is found that Ru and Ni are effective doping elements to reduce the thermal hysteresis of (MnFe){sub 2}(PSi). The origin of the thermal hysteresis is discussed on the basis of a thermodynamic model. It is shown that the elastic energy is responsible for the thermal hysteresis. We also show recent developments of the production process of Mn compounds in an industrial scale.

  4. Unoccupied electronic structure of Ni2MnGa ferromagnetic shape memory alloy

    SciTech Connect (OSTI)

    Maniraj, M.; D?Souza, S. W.; Rai, Abhishek; Schlagel, D. L.; Lograsso, T. A.; Chakrabarti, Aparna; Barman, S. R.

    2015-08-20

    Momentum resolved inverse photoemission spectroscopy measurements show that the dispersion of the unoccupied bands of Ni2MnGa is significant in the austenite phase. Furthermore, in the martensite phase, it is markedly reduced, which is possibly related to the structural transition to an incommensurate modulated state in the martensite phase. Finally, based on the first principle calculations of the electronic structure of NiMnGa, we show that the modification of the spectral shape with surface composition is related to change in the hybridization between the Mn 3d and Ni 3d-like states that dominate the unoccupied conduction band.

  5. Role of Cu-Ion Doping in Cu-α-MnO2 Nanowire Electrocatalysts for the Oxygen Reduction Reaction

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

    Davis, Danae J.; Lambert, Timothy N.; Vigil, Julian A.; Rodriguez, Mark A.; Brumbach, Michael T.; Coker, Eric N.; Limmer, Steven J.

    2014-07-09

    The role of Cu-ion doping in α-MnO2 electrocatalysts for the oxygen reduction reaction in alkaline electrolyte was investigated. Copper doped α-MnO2 nanowires (Cu-α-MnO2) were prepared with varying amounts of Cu2+ using a solvothermal method. The electrocatalytic dataindicates that Cu-α-MnO2 nanowires have higher terminal current densities, enhanced kinetic rate constants, and improved charge transfer resistances that trend with Cu-content, exceeding values attained by α-MnO2 alone. The observed improvement in catalytic behavior correlates with an increase in Mn3+ content for the Cu-α-MnO2 nanowires. The Mn3+/Mn4+ couple is themediator for the rate-limiting redox driven O2-/OH- exchange. It is proposed that O2 adsorbs viaanmore » axial site (the eg orbital on the Mn3+ d4 ion) at the surface, or at edge defects, of the nanowireand that the increase in covalent nature of the nanowire with Cu-ion doping leads to stabilization of O2 adsorbates and faster rates of reduction. This work is applicable to other manganese oxide electrocatalysts and shows for the first time there is a correlation for manganese oxides between electrocatalytic activity for the ORR in alkaline electrolyte and an increase in Mn3+ character of the oxide.« less

  6. Unique light-induced degradation in yellow-emitting K₂SiF₆:Mn²⁺ phosphor

    SciTech Connect (OSTI)

    Oyama, Takuya; Adachi, Sadao

    2014-10-07

    Photo-induced luminescence intensity degradation in yellow-emitting K₂SiF₆:Mn²⁺ phosphor is studied using x-ray diffraction measurement, photoluminescence (PL) analysis, PL excitation (PLE) spectroscopy, PL decay analysis, and electron spin resonance (ESR) measurement. The yellow-emitting K₂SiF₆:Mn²⁺ phosphor exhibits remarkable degradation in the PL intensity under Xe lamp exposure. Coherent laser irradiation also induces degradation and its degree is in the order of He–Cd (λ = 325 nm) > Ar⁺ (488 nm) > He–Ne laser (632.8 nm). The degradation mechanism is proposed to be due to change in the valence state of manganese ions from Mn²⁺ to Mn³⁺ by the photooxidation (Mn²⁺ → Mn³⁺) or disproportionation reaction (2Mn²⁺ → Mn⁺ + Mn³⁺). The ESR measurement confirms the decreased Mn²⁺ spin density in the sample exposed with Xe lamp. The PLE spectrum suggests that the excitation of Mn³⁺ ions occurs through energy transfer upon absorption of exciting radiation by the Mn²⁺ ions. Thermal annealing of the degraded samples at ≥200 °C causes a blueshift in the PL emission band with an appearance of the Mn⁴⁺-related sharp red emission lines.

  7. Planar Hall effect in Y{sub 3}Fe{sub 5}O{sub 12}/IrMn films

    SciTech Connect (OSTI)

    Zhang, X. Zou, L. K.

    2014-12-29

    The planar Hall effect of IrMn on an yttrium iron garnet (YIG = Y{sub 3}Fe{sub 5}O{sub 12}) was measured in the magnetic field rotating in the film plane. The magnetic field angular dependence of planar Hall resistance (PHR) was observed in YIG/IrMn bilayer at different temperatures, while the Gd{sub 3}Ga{sub 5}O{sub 12}/IrMn film shows constant PHR for different magnetic field angles at both 10 K and 300 K. This provides evidence that IrMn has interfacial spins which can be led by ferrimagnetic layer in YIG/IrMn structure. A hysteresis can be observed in PHR-magnetic field angle loop of YIG/IrMn film at 10 K, indicative of the irreversible switching of IrMn interfacial spins at low temperature.

  8. First-principles study of spin-transfer torque in Co{sub 2}MnSi/Al/Co{sub 2}MnSi spin-valve

    SciTech Connect (OSTI)

    Tang, Ling Yang, Zejin

    2013-11-21

    The spin-transfer torque (STT) in Co{sub 2}MnSi(CMS)/Al/Co{sub 2}MnSi spin-valve system with and without interfacial disorder is studied by a first-principles noncollinear wave-function-matching method. It is shown that in the case of clean interface the angular dependence of STT for CoCo/Al (the asymmetry parameter Λ≈4.5) is more skewed than that for MnSi/Al (Λ≈2.9), which suggests the clean CoCo/Al architecture is much more efficient for the application on radio frequency oscillation. We also find that even with interfacial disorder the spin-valve of half-metallic CMS still has a relatively large parameter Λ compared to that of conventional ferromagnet. In addition, for clean interface the in-plane torkance of MnSi/Al is about twice as large as that of CoCo/Al. However, as long as the degree of interfacial disorder is sufficiently large, the CoCo/Al and MnSi/Al will show approximately the same magnitude of in-plane torkance. Furthermore, our results demonstrate that CMS/Al/CMS system has very high efficiency of STT to switch the magnetic layer of spin-valve.

  9. Museum LOS ALAMOS, N.M., Sept. 5, 2013-Los Alamos National Laboratory Director Charlie

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

    lab director to link science education, national security in TEDxABQ talk September 5, 2013 Watch live stream at home or at Bradbury Science Museum LOS ALAMOS, N.M., Sept. 5, 2013-Los Alamos National Laboratory Director Charlie McMillan will discuss the linkage between national security and early education in science, technology, engineering, and mathematics (STEM) during a presentation at the TEDxABQ conference in Albuquerque on Saturday, Sept. 7. Although the event is expected to sell out

  10. LOS ALAMOS, N.M., April 2, 2015-Randy Fraser of Los Alamos National Laboratory's

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

    Randy Fraser receives NNSA 2014 Security Professional of the Year award April 2, 2015 LOS ALAMOS, N.M., April 2, 2015-Randy Fraser of Los Alamos National Laboratory's Security, Safeguards and Emergency Response Directorate received a 2014 National Nuclear Security Administration Security Professional of the Year award. "I am extremely honored to have the privilege of presenting these amazing individuals with the Bradley A. Peterson Federal and Contractor Security Professional of the Year

  11. LOS ALAMOS, N.M., April 7, 2016-Los Alamos and Sandia National Laboratories

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

    Looking inside plutonium April 7, 2016 New Mexico labs go where no one has gone before LOS ALAMOS, N.M., April 7, 2016-Los Alamos and Sandia National Laboratories have recently conducted plutonium experiments using Sandia's pulsed power Z Machine that have reached regions of pressure, temperature and density in plutonium never before explored in the laboratory. "With Z we have very carefully reached pressure, temperature and density regimes that are relevant to those seen during a nuclear

  12. LOS ALAMOS, N.M., Aug. 24, 2016-Eight Los Alamos National Laboratory innovations

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

    as R&D 100 Award finalists August 24, 2016 Eight technologies offer breakthroughs in energy, computing, cybersecurity, health, materials and particle accelerators LOS ALAMOS, N.M., Aug. 24, 2016-Eight Los Alamos National Laboratory innovations were selected as finalists for the 2016 R&D 100 Awards, which honor the top 100 proven technological advances of the past year as determined by a panel selected by R&D Magazine. The finalists, with projects covering energy, computing, health

  13. LOS ALAMOS, N.M., Dec. 15, 2014-The Los Alamos National Laboratory Fellows list

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

    Laboratory Fellows for 2014 December 15, 2014 Honorees span sciences in physics, astrophysics, chemistry LOS ALAMOS, N.M., Dec. 15, 2014-The Los Alamos National Laboratory Fellows list expands by five this week as a new group of high achievers is named. The honorees this year are Christopher L. Fryer, Herbert O. Funsten, John C. Gordon, Jaqueline L. Kiplinger and David S. Moore. "The sustained scientific excellence demonstrated by the work of Chris, Herb, John, Jaqueline and David

  14. LOS ALAMOS, N.M., Dec. 17, 2015-Scientists at Los Alamos National Laboratory

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

    more accurately tracks gases for underground nuclear explosion detection December 17, 2015 Model uniquely pairs seismic data with radionuclide fluid-flow models LOS ALAMOS, N.M., Dec. 17, 2015-Scientists at Los Alamos National Laboratory have developed a new, more thorough method for detecting underground nuclear explosions (UNEs) by coupling two fundamental elements-seismic models with gas-flow models-to create a more complete picture of how an explosion's evidence (radionuclide gases) seep to

  15. LOS ALAMOS, N.M., Dec. 3, 2015-Los Alamos National Laboratory molecular

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

    explore new strategies to improve photosynthesis, increase energy yields December 6, 2015 First talk is Monday, Dec. 7 in Albuquerque LOS ALAMOS, N.M., Dec. 3, 2015-Los Alamos National Laboratory molecular biologist Richard Sayre discusses how improving photosynthetic efficiency may result in substantial increases in crop yields during two Frontiers in Science lectures titled "Hacking Photosynthesis: Growing Plants to Power Our Engines and Feed the World" beginning Dec. 7 in

  16. LOS ALAMOS, N.M., July 24, 2014-Dipen Sinha of Los Alamos National Laboratory's

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

    Acoustics topic of upcoming Frontiers in Science series July 24, 2014 Tapping sound waves to address energy, national security challenges LOS ALAMOS, N.M., July 24, 2014-Dipen Sinha of Los Alamos National Laboratory's Materials Synthesis and Integrated Devices group will discuss acoustics and its applications, including how it is possible to use sound to solve problems in health, national security and for industry, in a series of Frontiers in Science Lectures beginning July 29 at Crossroads

  17. LOS ALAMOS, N.M., June 24, 2015-Scientists at Los Alamos National Laboratory

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

    ocean mixing reveals insight on climate June 24, 2015 Eddies pull carbon emissions into deep ocean, new model simulates complex process LOS ALAMOS, N.M., June 24, 2015-Scientists at Los Alamos National Laboratory have developed a computer model that clarifies the complex processes driving ocean mixing in the vast eddies that swirl across hundreds of miles of open ocean. "The model enables us to study the important processes of ocean storms, which move heat and carbon from the atmosphere

  18. LOS ALAMOS, N.M., March 24, 2015-Los Alamos National Laboratory mechanical

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

    computer simulation improves offshore drill rig safety March 24, 2015 LOS ALAMOS, N.M., March 24, 2015-Los Alamos National Laboratory mechanical and thermal engineering researchers' efforts to solve the complex problem of how ocean currents affect the infrastructure of floating oilrigs and their computational fluid dynamics (CFD) numerical simulations received recognition from ANSYS Inc., a company that provides computer-based engineering simulation capabilities."Because energy resources

  19. LOS ALAMOS, N.M., May 22, 2013-Los Alamos National Laboratory's Bradbury

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

    partnering in national Blue Star Museums program May 22, 2013 Free admission for active duty military, their family members LOS ALAMOS, N.M., May 22, 2013-Los Alamos National Laboratory's Bradbury Science Museum is again partnering with the National Endowment for the Arts, Blue Star Families Foundation and the Department of Defense in the Blue Star Museums program to host active duty military personnel and their families from Memorial Day, May 27, through Labor Day, Sept. 2. "In this the

  20. LOS ALAMOS, N.M., Nov. 19, 2013-Researchers at Los Alamos National Laboratory

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

    virus spread and evolution studied through computer modeling November 19, 2013 LOS ALAMOS, N.M., Nov. 19, 2013-Researchers at Los Alamos National Laboratory are investigating the complex relationships between the spread of the HIV virus in a population (epidemiology) and the actual, rapid evolution of the virus (phylogenetics) within each patient's body. "We have developed novel ways of estimating epidemics dynamics such as who infected whom, and the true population incidence of infection