Thermally induced spin polarization and thermal conductivities in a spin-orbit-coupled two-dimensional electron gas

被引：18
|
作者：
Wang, C. M. [1 ]
Pang, M. Q. [1 ]
机构：
[1] Anyang Normal Univ, Sch Phys & Elect Engn, Anyang 455000, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 33-34期
基金：
美国国家科学基金会;
关键词：
Quantum well; Spin polarization; Thermal conductivity; Spin-orbit interaction; SEMICONDUCTORS; TEMPERATURE; ORIENTATION;
D O I：
10.1016/j.ssc.2010.06.013
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The thermal conductivities and spin polarization induced by the temperature gradient are investigated in a Rashba spin-orbit-coupled two-dimensional electron gas. In this spin-orbit-coupled system in the presence of nonmagnetic or magnetic electron-impurity scattering, the Wiedemann-Franz law still holds. However, the spin polarization induced by the temperature gradient strongly depends on the property of impurities. The components of spin accumulation both perpendicular and parallel to the direction of the temperature gradient, and the thermally induced charge Hall conductivity may be nonzero for magnetic disorders. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1509 / 1513
页数：5
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