Observation of Plasma Waves with Anomalously Weak Damping in a Two-Dimensional Electron System

被引：16

作者：

Gusikhin, P. A. ^{[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

来源：

JETP LETTERS | 2015年 / 100卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

LIQUID; GAS;

D O I：

10.1134/S0021364014220068

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microwave absorption spectra of a stripe of two-dimensional electrons in a GaAs/AlGaAs heterostructure are investigated using the optical detection of microwave absorption. A previously unknown low-frequency microwave-absorption resonance corresponding to the excitation of a weakly damped plasma wave in the two-dimensional electron system is observed. The new plasma mode is anomalously narrow, its width being considerably smaller than the inverse relaxation time of two-dimensional electrons. The measured dependences of the frequency of this mode on the density of two-dimensional electrons and the magnetic field give evidence of its plasmon-polariton nature.

引用

页码：648 / 651

页数：4

共 14 条

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