Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas

doi:10.1088/1674-1056/19/4/047203

中国物理B ›› 2010, Vol. 19 ›› Issue (4): 47203-047203.doi: 10.1088/1674-1056/19/4/047203

Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas

颜玉珍, 胡梁宾

Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, China

收稿日期:2008-10-08 修回日期:2009-09-13 出版日期:2010-04-15 发布日期:2010-04-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.~10874049), the State Key Program for Basic Research of China (Grant No.~2007CB925204) and the Natural Science Foundation of Guangdong Province of China (Grant No.~07005834).

Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas

Yan Yu-Zhen(颜玉珍) and Hu Liang-Bin(胡梁宾)^†

Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, China

Received:2008-10-08 Revised:2009-09-13 Online:2010-04-15 Published:2010-04-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.~10874049), the State Key Program for Basic Research of China (Grant No.~2007CB925204) and the Natural Science Foundation of Guangdong Province of China (Grant No.~07005834).

摘要/Abstract

摘要： We study theoretically the influence of spin--orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a two-dimensional electron gas with Rashba spin--orbit coupling. We show that, after such an influence is taken into account, the static intrinsic spin-Hall effect can be stabilized in a disordered Rashba two-dimensional electron gas, and the static intrinsic spin-Hall conductivity shall exhibit some interesting characteristics as conceived in some original theoretical proposals.

Abstract: We study theoretically the influence of spin--orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a two-dimensional electron gas with Rashba spin--orbit coupling. We show that, after such an influence is taken into account, the static intrinsic spin-Hall effect can be stabilized in a disordered Rashba two-dimensional electron gas, and the static intrinsic spin-Hall conductivity shall exhibit some interesting characteristics as conceived in some original theoretical proposals.

Key words: Rashba spin--orbit coupling, spin--orbit coupling induced by in-plane external electric field, spin-Hall effect

中图分类号: (Galvanomagnetic and other magnetotransport effects)

72.20.My

72.25.-b (Spin polarized transport) 73.63.-b (Electronic transport in nanoscale materials and structures) 71.70.Ej (Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect) 73.21.-b (Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems)

颜玉珍, 胡梁宾. Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas[J]. 中国物理B, 2010, 19(4): 47203-047203.

Yan Yu-Zhen(颜玉珍) and Hu Liang-Bin(胡梁宾). Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas[J]. Chin. Phys. B, 2010, 19(4): 47203-047203.

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Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas

Influence of spin－orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas

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