Interfacial spin Hall current in a Josephson junction with Rashba spin-orbit coupling

被引：6

作者：

Yang Zhi-Hong ^{[1
,2
]}

Yang Yong-Hong ^{[1
]}

Wang Jun ^{[1
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 210096, Jiangsu, Peoples R China

[2] Nanjing Univ Post & Telecommun, Coll Sci, Nanjing 210046, Jiangsu, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Josephson junction; spin Hall current; Rashba spin-orbit coupling; interfacial current;

D O I：

10.1088/1674-1056/21/5/057402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We theoretically investigate the spin transport properties of the Cooper pairs in a conventional Josephson junction with Rashba spin orbit coupling considered in one of the superconducting leads. It is found that an angle-resolved spin supercurrent flows through the junction and a nonzero interfacial spin Hall current driven by the superconducting phase difference also appears at the interface. The physical origin of this is that the Rashba spin orbit coupling can induce a triplet order parameter in the s-wave superconductor. The interfacial spin Hall current dependences on the system parameters are also discussed.

引用

页数：6

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