Nonparabolic tendency of electron effective mass estimated by confined states in In0.53Ga0.47As/In0.52Al0.48AS multi-quantum-well structures

被引：8
|
作者：
Tanaka, K [1 ]
Kotera, N
Nakamura, H
机构：
[1] Kyushu Inst Technol, Dept Comp Sci & Elect, Iizuka, Fukuoka 8208502, Japan
[2] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 185, Japan
来源：
SUPERLATTICES AND MICROSTRUCTURES | 1999年 / 26卷 / 01期
关键词：
nonparabolic tendency; effective mass; conduction subband;
D O I：
10.1006/spmi.1999.0700
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We observed that a series of peaks, which were clearly extracted from a photocurrent difference spectrum, corresponded to interband optical transitions of an In0.53Ga0.47As/In0.52Al0.48As multi-quantum wells structure. The nonparabolic tendency of the electron effective mass was suggested from eigenenergies of conduction subbands, The effective mass estimated in a direction normal to the InGaAs quantum well plane was heavier than the effective mass of the bulk band edge and was 0.07m(0) at the top of a quantum potential well. (C) 1999 Academic Press.
引用
收藏
页码：17 / 22
页数：6
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