Lifshitz tail in the density of states of a superconductor with magnetic impurities

被引：37

作者：

Balatsky, AV

Trugman, SA

机构：

[1] LD LANDAU THEORET PHYS INST,MOSCOW,RUSSIA

[2] LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.79.3767

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We argue that any superconductor with magnetic impurities is gapless due to a Lifshitz tail in the density of states extending to zero energy. At low energy the density of states nu(E --> 0) remains finite. We show that fluctuations in the impurity distribution produce regions of suppressed superconductivity, which are responsible for the low energy density of states. [S0031-9007(97)04452-9].

引用

页码：3767 / 3770

页数：4

共 15 条

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