INFLUENCE OF GAP EXTREMA ON THE TUNNELING CONDUCTANCE NEAR AN IMPURITY IN AN ANISOTROPIC SUPERCONDUCTOR

被引：116

作者：

BYERS, JM ^{[1
]}

FLATTE, ME ^{[1
]}

SCALAPINO, DJ ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.71.3363

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We examine the effect of an impurity on the nearby tunneling conductance in an anisotropically gapped superconductor. The variation of the conductance has pronounced spatial dependence which depends strongly on the Fermi surface location of gap extrema. In particular, different gap symmetries produce profoundly different spatial features in the conductance. These effects may be detectable with a scanning-tunneling-microscope study of the surface of a high-temperature superconductor.

引用

页码：3363 / 3366

页数：4

共 26 条

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