Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling

被引：8

作者：

Bai, C. ^{[1
]}

Yang, Y. -L. ^{[1
]}

Zhang, X. -D. ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL B | 2008年 / 65卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1140/epjb/e2008-00321-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Based on the extended Blonder-Tinkham-Klapwijk (BTK) approach, we have investigated the coherent quantum transport in two-dimensional electron gas/superconductor (2DEG/SC) double tunneling junctions in the presence of the Rashba spin-orbit coupling (RSOC). It is found that all the reflection coefficients in BTK theory as well as conductance spectra oscillate with the external voltage and energy. The oscillation feature of conductance can be tuned largely by the RSOC for low insulating barriers, while for high insulating barriers it is almost independent of the RSOC. These phenomena are essentially different from those found in ferromagnet/superconductor double tunneling junctions.

引用

页码：79 / 84

页数：6

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