Aharonov-Bohm oscillation of Raman scattering in a quantum ring

被引：4
|
作者：
Xie, Wenfang [1 ]
机构：
[1] Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2014年 / 438卷
关键词：
Quantum ring; Raman scattering; Aharonov-Bohm effect; PERSISTENT CURRENT; DOTS; EXCITON;
D O I：
10.1016/j.physb.2014.01.012
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
An electron Raman scattering process in a semiconductor quantum ring with a repulsive scattering center is investigated in the presence of an external magnetic field. The differential cross section is calculated as a function of the diffusion photon energy. The scattering spectra are discussed for the different magnetic field strengths and ring radii. The calculated results show that the electron Raman scattering of quantum rings is strongly affected by the external magnetic field, the ring radius and the impurity. Also we find that the resonant peak of the differential cross section of electron Raman scattering shows the optical Aharonov-Bohm oscillation upon changing the magnetic field and the ring radius. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：88 / 90
页数：3
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