A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model

Kim, D H; Gray, K E; Hettinger, J D

doi:10.2172/10144514

Title: A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model

Full Record
Other Related Research

Abstract

We show that the 3D-to-2D crossover model of Kim et al. (Physics C177, 431, 1991) provides a quantitative understanding of recent results of Thompson et al. (Appl. Phys. Lett. 60, 2306, 1992) for both the enhanced irreversibility line and critical current density, J{sub c}, in single-crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} after heavy-ion irradiation. Fits of the irreversibility lines indicate that these linear defects increase the pinning energy by a factor of {approximately}4, which is also consistent with the low-temperature J{sub c} enhancement. Dependence of the pinning effectiveness on the nature of artificial or natural pinning sites is discussed.

Authors:: Kim, D H; Gray, K E; Hettinger, J D

Publication Date:: Wed Jul 01 00:00:00 EDT 1992

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)

OSTI Identifier:: 10144514

Report Number(s):: ANL/MSD/PP-76773
ON: DE94010443; CNN: Contract DMR-88-09854

DOE Contract Number:: W-31109-ENG-38

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: Jul 1992

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HIGH-TC SUPERCONDUCTORS; PHYSICAL RADIATION EFFECTS; MAGNETIC FLUX; CRITICAL CURRENT; CRYSTAL DEFECTS; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; CURRENT DENSITY; ION BEAMS; 360207; 665411

Citation Formats


                    Kim, D H, Gray, K E, and Hettinger, J D. A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model.  United States: N. p., 1992. 
        Web.  doi:10.2172/10144514.

Copy to clipboard


                    Kim, D H, Gray, K E, & Hettinger, J D. A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model.  United States.  https://doi.org/10.2172/10144514

Copy to clipboard


                    Kim, D H, Gray, K E, and Hettinger, J D. 1992.  
        "A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model".  United States.  https://doi.org/10.2172/10144514.  https://www.osti.gov/servlets/purl/10144514.

Copy to clipboard


                    
@article{osti_10144514,

  title        = {A quantitative understanding of the enhanced irreversibility line and critical current density due to linear defects in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals with the vortex dimensionality-crossover model},

  author       = {Kim, D H and Gray, K E and Hettinger, J D},

  abstractNote = {We show that the 3D-to-2D crossover model of Kim et al. (Physics C177, 431, 1991) provides a quantitative understanding of recent results of Thompson et al. (Appl. Phys. Lett. 60, 2306, 1992) for both the enhanced irreversibility line and critical current density, J{sub c}, in single-crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} after heavy-ion irradiation. Fits of the irreversibility lines indicate that these linear defects increase the pinning energy by a factor of {approximately}4, which is also consistent with the low-temperature J{sub c} enhancement. Dependence of the pinning effectiveness on the nature of artificial or natural pinning sites is discussed.},

  doi          = {10.2172/10144514},

  url          = {https://www.osti.gov/biblio/10144514},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Jul 01 00:00:00 EDT 1992},

  month        = {Wed Jul 01 00:00:00 EDT 1992}

}

Copy to clipboard

Technical Report:

View Technical Report (0.83 MB)

https://doi.org/10.2172/10144514

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Magnetic properties of single-crystal Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+[ital y]]: Experimental evidence for a dimensional crossover

Journal Article Pradhan, A; Roy, S; Chaddah, P; ... - Physical Review, B: Condensed Matter; (United States)

Magnetization curves of high-quality superconducting Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+[ital y]] single crystals in fields oriented parallel to the [ital c] axis have been reported at various temperatures. The irreversibility line and magnetic relaxation of this single crystal have been measured in magnetic fields parallel to the [ital c] axis of the crystal. We have observed a low-field anomaly in the magnetization together with a sharp rise of the irreversibility line and a nonlogarithmic magnetic relaxation at 25 K. We argue that 25 K is a boundary temperature where the system undergoes a dimensional crossover from the three-dimensional (3D) tomore »« less
https://doi.org/10.1103/PhysRevB.49.12984
Vortex dynamics in a Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} crystal with columnar defects

Journal Article van der Beek, C; Konczykowski, M; Vinokur, V; ... - Physical Review, B: Condensed Matter

The frequency-dependent shielding of an applied ac field is used to study the vortex dynamics in a Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystal irradiated with 5.8-GeV Pb ions. At fields below the matching field {ital B}{sub {Phi}}{approx}200 G, the sample exhibits strong pinning due to the irradiation-induced columnar defects. The dynamics in this field regime is shown to be in accurate agreement with the predictions of the Bose-glass theory of Nelson and Vinokur [Phys. Rev. B 48, 13 082 (1993)]. We propose to explain deviations from the Bose-glass predictions at fields greater than {ital B}{sub {Phi}}, and temperatures exceedingmore »« less
https://doi.org/10.1103/PhysRevB.51.15492
ac susceptibility in YBa[sub 2](Cu[sub 1[minus][ital x]]Fe[sub [ital x]])[sub 3]O[sub 7[minus][delta]]: Evidence for two-step irreversibility-line crossover

Journal Article Mehbod, M; Sergeenkov, S; Ausloos, M; ... - Physical Review, B: Condensed Matter; (United States)

The ac susceptibilities of YBa[sub 2](Cu[sub 1[minus][ital x]]Fe[sub [ital x]])[sub 3]O[sub 7[minus][delta]] polycrystals for 0[le][ital x][lt]0.05 have been measured as a function of temperature and magnetic-field strength. Two different types of behavior of the irreversibility line, [ital T][sub [ital m]]([ital H]), obeying the law 1[minus][ital T][sub [ital m]]/[ital T][sub [ital c]][similar to][ital H][sup [ital q]] have been found. One corresponds to pure Y-Ba-Cu-O ([ital x]=0) and shows the commonly observed change of the power exponent [ital q] from 2/3 to 1 with increasing field. For the iron-doped samples an additional unusual crossover from [ital q]=1 to [ital q]=4/3 is observedmore »« less
https://doi.org/10.1103/PhysRevB.48.483
Evidence for a depinning transition in the vortex quasilattice of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}

Journal Article Dewhurst, C; Doyle, R - Physical Review, B: Condensed Matter

Magnetization measurements have been performed on several crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} as a function of both temperature and magnetic field. A pinning crossover for vortices is identified at fields above the arrowhead second peak transition but below the irreversibility line in agreement with recent Hall-array measurements. In addition, a small but clear feature is apparent in the derivative of the magnetic moment as a function of temperature at fields below that of the arrowhead at an almost field-independent temperature of about 32 K. These features define a pinning-related transition that crosses continuously from the disordered into themore »« less
https://doi.org/10.1103/PhysRevB.56.10832
Flux pinning and the irreversibility lines in the HgBa{sub 2}CuO{sub 4+delta}, HgBa{sub 2}CaCu{sub 2}O{sub 6+delta} and HgBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 8+delta} compounds.

Journal Article Welp, U; Crabtree, G; Wagner, J; ... - Physica C

Using measurements of the magnetization hysteresis we determine the temperature and field dependence of the critical current density, the pinning force and the irreversibility lines of polycrystalline HgBa{sub 2}CuO{sub 4+{delta}}, HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} and HgBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 8+{delta}}. For all three materials we observe an exponential decay of the critical current with increasing temperature and/or field. The temperature dependence of the irreversibility fields follows a power law, H{sub irr}{approx}(1-T/{Tc}){sup 4}, and is intermediate to that of YBa{sub 2}Cu{sub 3}O{sub 7} and the Bi/Tl-based superconductors. These results are analyzed in a model in which the separation between the superconductingmore »« less
https://doi.org/10.1016/0921-4534(93)90039-S

Similar Records