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arXiv · 0808.3128

Magnetoplasmons in layered graphene structures

Oleg L. Berman·Godfrey Gumbs·Yurii E. Lozovik
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Abstract

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.

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Oleg L. Berman, Godfrey Gumbs, Yurii E. Lozovik. 2008-08-22. Magnetoplasmons in layered graphene structures. https://doi.org/10.1103/physrevb.78.085401

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