SUPPRESSION OF LATERAL DIFFUSION OF EXCITONS IN GAAS QUANTUM-WELLS UNDER PERPENDICULAR MAGNETIC-FIELDS

被引：4
|
作者：
AKIYAMA, H
SAKAKI, H
MATSUSUE, T
机构：
[1] RES DEV CORP JAPAN,QUANTUM TRANSIT PROJECT,MEGURO KU,TOKYO 153,JAPAN
[2] UNIV TOKYO,ADV SCI & TECHNOL RES CTR,MEGURO KU,TOKYO 153,JAPAN
[3] CHIBA UNIV,FAC ENGN,DEPT MAT SCI,INAGE KU,CHIBA 263,JAPAN
来源：
APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 14期
关键词：
D O I：
10.1063/1.115070
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have performed lateral diffusion measurements of photo-excited electron-hole pairs in a GaAs/AlAs multiple quantum well structure under magnetic fields applied perpendicular to the wells, by using an all-optical time-of-flight technique with a single-mode optical fiber probe. Remarkable suppression of exciton diffusion is observed, and is ascribed to the magnetic perturbation by which moving excitons are affected proportionally to the square of wave vectors. (C) 1995 American Institute of Physics.
引用
收藏
页码：2037 / 2039
页数：3
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