Undamped relativistic magnetoplasmons in lossy two-dimensional electron systems

被引：8

作者：

Volkov, V. A. ^{[1
]}

Zabolotnykh, A. A.

机构：

[1] RAS, Kotelnikov Inst Radio Engn & Elect, Mokhovaya 11-7, Moscow 125009, Russia

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 16期

基金：

俄罗斯科学基金会;

关键词：

EDGE MAGNETOPLASMONS; GRAPHENE PLASMONS; DIELECTRIC TENSOR; MAGNETIC-FIELD; GAS; OSCILLATIONS; LIQUID; FLUID; WAVES;

D O I：

10.1103/PhysRevB.94.165408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We address electrodynamic effects in plasma oscillations of a lossy 2D electron system whose dc 2D conductivity sigma(0) is comparable to the speed of light c. We argue that the perpendicular constant magnetic field B causes astonishing features of magnetoplasma dynamics. We show that plasmon-polariton spectra can be classified using a "relativistic" phase diagram sigma(0)/c versus B. An extraordinarily low damping branch in magnetoplasmon-polariton spectra emerges at two phases of this diagram. Some magnetoplasmons at these phases are predicted to be undamped waves.

引用

页数：7

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