Rashba spin-orbit coupling in a two-dimensional quantum ring superlattice

被引：5
|
作者：
Mughnetsyan, Vram [1 ]
Manaselyan, Aram [1 ]
Kirakosyan, Albert [1 ]
机构：
[1] Yerevan State Univ, Dept Solid State Phys, Yerevan 0025, Armenia
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 82卷
关键词：
Quantum ring; Spin orbit interaction; Supper lattice; SPECTRA; STATES;
D O I：
10.1016/j.spmi.2015.03.001
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effect of the Rashba spin-orbit coupling on electronic states in GaAs/Ga(1-x)A1(x)As two-dimensional quantum ring superlattice is investigated. The conduction band structure and the Bloch amplitudes of the superlattice are obtained by the exact diagonalization procedure using the Fourier transformation to the momentum space. The splitting of the mini-bands as well as the crossing of the dispersion surfaces at the high symmetry points in the Brillouin zone are obtained. It is shown that spin-orbit interaction brings an asymmetry to the Bloch amplitudes of the conduction mini-band. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：584 / 591
页数：8
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