Density of states in superconductor normal metal superconductor junctions

被引：123

作者：

Zhou, F ^{[1
]}

Charlat, P

Spivak, B

Pannetier, B

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Grenoble 1, CNRS, Ctr Rech Tres Basses Temp, Lab Associe, F-38042 Grenoble, France

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1998年 / 110卷 / 3-4期

关键词：

D O I：

10.1023/A:1022628927203

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We consider the chi(0)-dependence of the density of states inside the normal metal of a superconductor-normal metal-superconductor (SNS) junction. Here chi(0) is the phase difference of two superconductors of the junction. It is shown that in the absence of electron-electron interaction the energy dependence of the density of states has a gap which decreases as chi(0) increases and closes at chi(0) = pi. Both the analytical expressions for the chi(0)-dependence of the density of states and the results of numerical simulations are presented.

引用

页码：841 / 850

页数：10

共 14 条

[1] Random matrix theory of a chaotic Andreev quantum dot [J].