BIEXCITONS IN QUANTUM-WELLS - A QUANTUM MONTE-CARLO STUDY

被引：7
|
作者：
ZHANG, JB
PANG, T
CHEN, CF
机构：
[1] Department of Physics, University of Nevada, Las Vegas
来源：
PHYSICS LETTERS A | 1995年 / 206卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0375-9601(95)00621-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The exact binding energies of biexcitons in GaAs/Ga1-xAlxAs quantum wells in the effective mass model are evaluated by diffusion quantum Monte Carlo simulations. The results support the experimental interpretation that biexcitons can exist in quantum confined structures such as the quantum wells of GaAs/Ga1-xAlxAs. The electron correlation effects and quantum confinement are shown to enhance the binding of the exciton pairs. The calculated results for various quantum wells provide a guide for further experiments in accurate determination of the binding energies of biexcitons in quantum wells.
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页码：101 / 106
页数：6
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