Electron-phonon coupling in the two-phonon mode ternary alloy Al0.25In0.75As/Ga0.25In0.75As quantum well

被引:7
作者
Faugeras, C
Martinez, G
Capotondi, F
Biasiol, G
Sorba, L
机构
[1] Max Planck Inst Festkorperforsch, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France
[2] CNRS, F-38042 Grenoble 9, France
[3] INFM, NEST, I-34012 Trieste, Italy
[4] INFM, TASC, I-34012 Trieste, Italy
[5] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy
来源
EUROPHYSICS LETTERS | 2004年 / 67卷 / 06期
关键词
D O I
10.1209/epl/i2004-10153-2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have investigated the infrared transmission of a two-dimensional electron gas (2DEG) confined in a Al0.25In0.75As/Ga0.25In0.75As single quantum well in order to study the electron optical phonon interaction in a two-phonon mode system. Infrared transmission experiments have been performed in both the perpendicular Faraday (PF) and tilted Faraday (TF) configurations for which the growth axis of the sample is tilted with respect to the incident light propagation direction and to the magnetic-field direction. The experimental results lead to question the validity of the concept of polaron mass in a real material.
引用
收藏
页码:1031 / 1037
页数:7
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