Interplay of intrinsic and extrinsic mechanisms to the spin Hall effect in a two-dimensional electron gas

被引：16

作者：

Raimondi, Roberto ^{[1
]}

Schwab, Peter ^{[2
]}

机构：

[1] Univ Roma Tre, Dipartimento Fis E Amaldi, I-00146 Rome, Italy

[2] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 04期

关键词：

Spin Hall effect; Spin-orbit interaction; Spin-polarized transport; TRANSPORT; SYSTEMS;

D O I：

10.1016/j.physe.2009.10.047

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In order to describe correctly the interplay of extrinsic and intrinsic spin-orbit mechanisms to the spin Hall effect, it is necessary to consider different sources of spin relaxation. We take into account the spin relaxation time tau(DP) due to the Dyakonov-Perel mechanism as well as the Elliott-Yafet spin-relaxation time tau(s) due to the spin-orbit scattering from impurities. The total spin Hall conductivity depends crucially on the ratio tau(s)/tau(DP). (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：952 / 955

页数：4

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