INTERACTION OF MAGNETOEXCITONS AND 2-DIMENSIONAL ELECTRON-GAS IN THE QUANTUM HALL REGIME

被引：135
|
作者：
CHEN, W
FRITZE, M
NURMIKKO, AV
ACKLEY, D
COLVARD, C
LEE, H
机构：
[1] BROWN UNIV,DEPT PHYS,PROVIDENCE,RI 02912
[2] SIEMENS LABS,PRINCETON,NJ 08540
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.64.2434
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the influence of a two-dimensional electron gas on interband optical transitions in an (In,GaAs) modulation doped single quantum well under conditions where the Fermi level is very near the n=2 conduction subband and a many-body exciton is observed from this subband. Strong variations occur in external magnetic fields in both the exciton spectrum and its amplitude of which the latter correlates with the longitudinal Hall resistance in the quantum Hall regime. © 1990 The American Physical Society.
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收藏
页码：2434 / 2437
页数：4
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