IMPURITY MAGNETIC-MOMENTS IN UNCONVENTIONAL SUPERCONDUCTORS

被引:13
作者
CHOI, CH
MUZIKAR, P
机构
[1] Department of Physics, Purdue University, West Lafayette
来源
PHYSICAL REVIEW B | 1990年 / 41卷 / 04期
关键词
D O I
10.1103/PhysRevB.41.1812
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An impurity in an unconventional superconductor strongly perturbs the order parameter out to distances of order (T); when the order parameter breaks time-reversal symmetry, a pattern of supercurrents J(R) is set up in the vicinity of the impurity. In this paper we address the question of whether J(R) integrates up to produce a net magnetic moment. In a wide variety of situations the moment vanishes, if the perturbation in the order parameter goes to zero rapidly enough at large distances from the impurity. © 1990 The American Physical Society.
引用
收藏
页码:1812 / 1815
页数:4
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