Plasmon Excitations in Partially Screened Two-Dimensional Electron Systems (Brief Review)

被引：5

作者：

Zarezin, A. M. ^{[1
,2
]}

Gusikhin, P. A. ^{[1
]}

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

Muravev, V. M. ^{[1
]}

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

机构：

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

[2] Natl Res Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Region, Russia

来源：

JETP LETTERS | 2021年 / 113卷 / 11期

基金：

俄罗斯科学基金会;

关键词：

RADIATION; RESONANCE; LIQUID;

D O I：

10.1134/S0021364021110096

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The latest achievements in the study of the physical properties of plasmon excitations in partially screened two-dimensional electron systems based on AlGaAs/GaAs heterostructures have been reviewed. It has been revealed that a proximity plasmon, i.e., a specific type of two-dimensional plasma waves, is excited in such systems. It has been established experimentally that these plasma waves have a number of new physical properties. First, the dispersion relation of partially screened plasmons combines features of both screened and unscreened two-dimensional plasmons. Second, an edge branch is absent in the magnetic dispersion relation of the revealed proximity mode. Finally, a "charged" relativistic plasma mode with a number of unique properties is excited in the system if the gate is connected to the two-dimensional system through an external circuit. The reported new results expand the horizon of possible applications of plasmonics in the field of microwave and terahertz electronics.

引用

页码：713 / 722

页数：10

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