Influence of in-plane magnetic field on spin polarization in the presence of the oft-neglected k3-Dresselhaus spin-orbit coupling

被引：9
|
作者：
Mahani, Mohammad Reza Khayatzadeh [1 ]
机构：
[1] KNT Univ Technol, Fac Sci, Dept Phys, Tehran, Iran
来源：
PHYSICS LETTERS A | 2008年 / 372卷 / 38期
关键词：
semiconductor; tunneling; spin polarization; Dresselhaus spin-orbit coupling;
D O I：
10.1016/j.physleta.2008.08.009
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of in-plane magnetic field on spin polarization in the presence of the oft-neglected k(3)- Dresselhaus spin-orbit coupling was investigated. The k(3)-Dresselhaus term can produce a limited spin polarization. The in-plane magnetic held plays a great role in the tunneling process. It can generate the perfect spin polarization of the electrons and the ideal transmission coefficient for spin up and down simultaneously. In energy scale, complete separation between spin up and down resonance was obtained by a relatively higher in-plane magnetic field while a comparatively lower in-plane magnetic field vanishes the spin separation. On the other hand, the spin relaxation can be suppressed by compensating the oft-neglected k(3)-Dresselhaus spin orbit coupling using a relatively lower in-plane magnetic field. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：6022 / 6025
页数：4
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