Magnetoplasmons in layered graphene structures

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.

5 pages, 4 figures

References in corpus (10)

• Electric Field Effect in Atomically Thin Carbon Films
• Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
• Dielectric function, screening, and plasmons in 2D graphene
• Quantum Hall Ferromagnetism in Graphene
• Landau Level Splitting in Graphene in High Magnetic Fields
• Fractional Quantum Hall Effect in Graphene
• Excitations from Filled Landau Levels in Graphene
• Bose-Einstein condensation and Superfluidity of magnetoexcitons in Graphene
• Magnetoplasmons excitations in graphene for filling factors $\nu \le 6$
• Theory of Weiss oscillations in the magnetoplasmon spectrum of Dirac electrons in graphene

Cited by in corpus (3)

• Collective modes of doped graphene and a standard 2DEG in a strong magnetic field: linear magneto-plasmons versus magneto-excitons
• Formation of p-n junction in polymer electrolyte-top gated bilayer graphene transistor
• Quasiparticles for quantum dot array in graphene and the associated Magnetoplasmons