Density of states in a superconductor carrying a supercurrent

被引：123

作者：

Anthore, A ^{[1
]}

Pothier, H ^{[1
]}

Esteve, D ^{[1
]}

机构：

[1] CEA Saclay, Serv Phys Etat Condense, Direct Sci Mat, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.90.127001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the tunneling density of states (DOS) in a superconductor carrying a supercurrent or exposed to an external magnetic field. The pair correlations are weakened by the supercurrent, leading to a modification of the DOS and to a reduction of the gap. As predicted by the theory of superconductivity in diffusive metals, we find that this effect is similar to that of an external magnetic field.

引用

页数：4

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