The hydrostatic pressure and temperature effects on Raman scattering of a hydrogenic impurity in a disc-shaped quantum dot

被引：9
|
作者：
Lu, Liangliang [1 ]
Xie, Wenfang [1 ]
Wei, Ruihao [1 ]
机构：
[1] Guangzhou Univ, Coll Phys & Elect Engn, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2011年 / 49卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Quantum dot; Hydrostatic pressure; Temperature; Raman scattering; PERTURBATION CALCULATION; PARABOLIC CONFINEMENT; BINDING-ENERGY; MAGNETIC-FIELD; DONOR STATES; GAAS-GA1-XALXAS; SEMICONDUCTORS; SUPERLATTICES; ELECTRON; ALAS;
D O I：
10.1016/j.spmi.2011.03.007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using the perturbation method and the effective-mass approximation, we studied the combined effects of hydrostatic pressure and temperature on Raman scattering in a disc-shaped quantum dot with a parabolic potential in the presence of an electric field. The differential cross-section involved in this process is calculated. Numerical calculations on a typical GaAs quantum dot are performed. The results show that not only the impurity but also the temperature and the hydrostatic pressure have an influence on the differential cross-section of the system. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：555 / 561
页数：7
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