Biexcitons and charged excitons in GaAs/AlAs type-II superlattices: a quantum Monte Carlo study

被引：11
|
作者：
Tsuchiya, T [1 ]
机构：
[1] JAIST, Tatsunokuchi, Ishikawa 9231292, Japan
来源：
JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷
关键词：
biexcitons; charged excitons; type-II superlattices; GaAs/AlAs;
D O I：
10.1016/S0022-2313(99)00227-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Biexcitons and positively and negatively charged excitons in GaAs/AlAs short-period type-II superlattices have been investigated by the diffusion Monte Carlo method. As opposed to the bulk and type-I quantum wells, we found that binding energies for charged excitons are much larger than those of biexcitons. This is explained by inter-particle configuration peculiar to type-II superlattices. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：509 / 511
页数：3
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