Modeling of Exciton Exchange Interaction in GaAs/AlGaAs Quantum Wells

被引：0
|
作者：
Khramtsov, E. S. [1 ]
Gribakin, B. F. [1 ]
Trifonov, A., V [1 ]
Ignatiev, I., V [1 ]
机构：
[1] St Petersburg State Univ, Spin Opt Lab, St Petersburg 198504, Russia
来源：
SEMICONDUCTORS | 2020年 / 54卷 / 11期
基金：
俄罗斯科学基金会;
关键词：
quantum wells; exciton; exchange interaction;
D O I：
10.1134/S1063782620110135
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this work, we study the exchange interactions between two excitons in the GaAs/AlGaAs quantum wells of various widths. We numerically solved the Schrodinger equation for an exciton in a quantum well to find the two-exciton wave functions and to calculate the exchange integral. The results suggest that the strongest interactions between excitons occur in the quantum wells of widths of about 40-50 nm, with the exchange energy being of about of 9 mu eV for an exciton density of 1/mu m(2).
引用
收藏
页码：1503 / 1505
页数：3
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