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Title: Anisotropy of the upper critical field in a heavy-fermion superconductor

Abstract

We study the upper critical field for various possible order parameters of a heavy-fermion superconductor. We pay particular attention to the question of how the anisotropy of the upper critical field changes by effects of paramagnetism, impurity scattering, and Fermi-surface anisotropy in the presence of strong spin-orbit coupling. The paramagnetic limit can have a dramatic effect on the anisotropy in odd-parity superconductors, and provide important information on the symmetry of underlying order parameters. We also discuss the effect of impurity scattering.

Authors:
 [1];  [2]
  1. Department of Physics, Kyungwon University, Sungnam-shi, Kyunggi-do 461-701 (Korea, Republic of)
  2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
Publication Date:
OSTI Identifier:
5967263
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter; (United States)
Additional Journal Information:
Journal Volume: 48:18; Journal ID: ISSN 0163-1829
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; TYPE-II SUPERCONDUCTORS; CRITICAL FIELD; ANISOTROPY; ELECTRONIC STRUCTURE; FERMI LEVEL; IMPURITIES; L-S COUPLING; ORDER PARAMETERS; PARAMAGNETISM; COUPLING; ENERGY LEVELS; INTERMEDIATE COUPLING; MAGNETIC FIELDS; MAGNETISM; SUPERCONDUCTORS; 665411* - Basic Superconductivity Studies- (1992-)

Citation Formats

Choi, C H, and Sauls, J A. Anisotropy of the upper critical field in a heavy-fermion superconductor. United States: N. p., 1993. Web. doi:10.1103/PhysRevB.48.13684.
Choi, C H, & Sauls, J A. Anisotropy of the upper critical field in a heavy-fermion superconductor. United States. doi:10.1103/PhysRevB.48.13684.
Choi, C H, and Sauls, J A. Mon . "Anisotropy of the upper critical field in a heavy-fermion superconductor". United States. doi:10.1103/PhysRevB.48.13684.
@article{osti_5967263,
title = {Anisotropy of the upper critical field in a heavy-fermion superconductor},
author = {Choi, C H and Sauls, J A},
abstractNote = {We study the upper critical field for various possible order parameters of a heavy-fermion superconductor. We pay particular attention to the question of how the anisotropy of the upper critical field changes by effects of paramagnetism, impurity scattering, and Fermi-surface anisotropy in the presence of strong spin-orbit coupling. The paramagnetic limit can have a dramatic effect on the anisotropy in odd-parity superconductors, and provide important information on the symmetry of underlying order parameters. We also discuss the effect of impurity scattering.},
doi = {10.1103/PhysRevB.48.13684},
journal = {Physical Review, B: Condensed Matter; (United States)},
issn = {0163-1829},
number = ,
volume = 48:18,
place = {United States},
year = {1993},
month = {11}
}