Optical detection of magnetoplasma resonances in indirect-gap AlAs/AlGaAs quantum wells

被引：3

作者：

Khisameeva, A. R. ^{[1
,2
]}

Gubarev, S. I. ^{[1
]}

Murav'ev, V. M. ^{[1
]}

Kukushkin, I. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Region, Russia

[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

来源：

JETP LETTERS | 2017年 / 106卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

EDGE MAGNETOPLASMONS; ELECTRON;

D O I：

10.1134/S0021364017130100

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetoplasma excitations in AlAs/AlGaAs quantum wells, characterized by strong anisotropy in the effective mass of two-dimensional electrons, are investigated using the optical detection of resonance microwave absorption. This technique is used for the first time for an indirect-gap semiconductor. It is found that the magnetic dispersion of the cyclotron magnetoplasma mode deviates significantly from the theoretically expected behavior. This may be related to the considerably more pronounced manifestation of retardation effects in two-dimensional systems with an anisotropic energy spectrum.

引用

页码：26 / 29

页数：4

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