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Title: Evidence for magnetic-field-induced decoupling of superconducting bilayers in La 2-xCa 1+xCu 2O 6

Abstract

We report a study of magnetic susceptibility and electrical resistivity as a function of temperature and magnetic field in superconducting crystals of La 2-xCa 1+xCu 2O 6 with x = 0.10 and 0.15 and transition temperature T$$m\atop{c}$$ = 54 K (determined from the susceptibility). When an external magnetic field is applied perpendicular to the CuO 2 bilayers, the resistive superconducting transition measured with currents flowing perpendicular to the bilayers is substantially lower than that found with currents flowing parallel to the bilayers. Intriguingly, this anisotropic behavior is quite similar to that observed for the magnetic irreversibility points with the field applied either perpendicular or parallel to the bilayers. We discuss the results in the context of other studies that have found evidence for the decoupling of superconducting layers induced by a perpendicular magnetic field.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [2];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.; Stony Brook Univ., NY (United States). Materials Science and Engineering Dept.
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES); Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1433992
Alternate Identifier(s):
OSTI ID: 1434404
Report Number(s):
BNL-203535-2018-JAAM
Journal ID: ISSN 2469-9950; TRN: US1802339
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 13; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhong, Ruidan, Schneeloch, J. A., Chi, Hang, Li, Qiang, Gu, Genda, and Tranquada, J. M. Evidence for magnetic-field-induced decoupling of superconducting bilayers in La2-xCa1+xCu2O6. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.134520.
Zhong, Ruidan, Schneeloch, J. A., Chi, Hang, Li, Qiang, Gu, Genda, & Tranquada, J. M. Evidence for magnetic-field-induced decoupling of superconducting bilayers in La2-xCa1+xCu2O6. United States. doi:10.1103/PhysRevB.97.134520.
Zhong, Ruidan, Schneeloch, J. A., Chi, Hang, Li, Qiang, Gu, Genda, and Tranquada, J. M. Tue . "Evidence for magnetic-field-induced decoupling of superconducting bilayers in La2-xCa1+xCu2O6". United States. doi:10.1103/PhysRevB.97.134520. https://www.osti.gov/servlets/purl/1433992.
@article{osti_1433992,
title = {Evidence for magnetic-field-induced decoupling of superconducting bilayers in La2-xCa1+xCu2O6},
author = {Zhong, Ruidan and Schneeloch, J. A. and Chi, Hang and Li, Qiang and Gu, Genda and Tranquada, J. M.},
abstractNote = {We report a study of magnetic susceptibility and electrical resistivity as a function of temperature and magnetic field in superconducting crystals of La2-xCa1+xCu2O6 with x = 0.10 and 0.15 and transition temperature T$m\atop{c}$ = 54 K (determined from the susceptibility). When an external magnetic field is applied perpendicular to the CuO2 bilayers, the resistive superconducting transition measured with currents flowing perpendicular to the bilayers is substantially lower than that found with currents flowing parallel to the bilayers. Intriguingly, this anisotropic behavior is quite similar to that observed for the magnetic irreversibility points with the field applied either perpendicular or parallel to the bilayers. We discuss the results in the context of other studies that have found evidence for the decoupling of superconducting layers induced by a perpendicular magnetic field.},
doi = {10.1103/PhysRevB.97.134520},
journal = {Physical Review B},
number = 13,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}

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Figures / Tables:

FIG. 1 FIG. 1: (a) Crystal structure of the La$_{2−x}$Ca$_{1+x}$Cu2O6. (b) As-grown La$_{2−x}$Ca$_{1+x}$Cu2O6 single-crystal rods grown by the traveling-solvent floating-zone method. (c) Laue backdiffraction image of La2−xCa1+xCu2O6 single crystal with (001) direction ($c$-axis) pointing along the X-ray beam. Color points in (c) correspond to the calculated diffraction pattern, generated by software QLaue.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.