Current-induced Spin Polarization in 2-Dimensional Hole Gas

被引：0
|
作者：
Liu, Chao-Xing [1 ,2 ]
Zhou, Bin [2 ]
Shen, Shun-Qing [2 ]
Zhu, Bang-Fen [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Univ Hong Kong, Ctr Comp & Theoret Phys, Dept Phys, Hong Kong, Peoples R China
来源：
PHYSICS OF SEMICONDUCTORS | 2009年 / 1199卷
关键词：
Spin polarization; two-dimensional hole gas;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We investigate the current-induced spin polarization in the two-dimensional hole gas with the structure inversion asymmetry, in which the orbital angular momentum is taken into account to obtain the proper generalized spin operator for the hole gas. Based on the analytical and numerical results, we find that quite different from the electron system, the spin polarization of holes depends on Fermi energy linearly in the low doping regime and has a peak once the Fermi level is between two minima of the lowest spin-split light-hole subband.
引用
收藏
页码：433 / +
页数：2
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