Magnetoplasmons in layered graphene structures

被引：76

作者：

Berman, Oleg L. ^{[1
]}

Gumbs, Godfrey ^{[2
]}

Lozovik, Yurii E. ^{[3
]}

机构：

[1] CUNY, Dept Phys, New York City Coll Technol, Brooklyn, NY 11201 USA

[2] CUNY Hunter Coll, Dept Phys & Astron, New York, NY 10021 USA

[3] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.78.085401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the dispersion equations for magnetoplasmons in a single layer, a pair of parallel layers, a graphite bilayer, and a superlattice of graphene layers in a perpendicular magnetic field. We demonstrate the feasibility of a drift-induced instability of magnetoplasmons. The magnetoplasmon instability in a superlattice is enhanced compared to a single graphene layer. The energies of the unstable magnetoplasmons could be in the terahertz (THz) part of the electromagnetic spectrum. The enhanced instability makes superlattice graphene a potential source of THz radiation.

引用

页数：5

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