Determination of intrinsic lifetime of edge magnetoplasmons

Abstract

It is known that peculiar plasmons whose frequencies are purely imaginary exist in the interior of a two-dimensional electronic system described by the Drude model. We show that when an external magnetic field is applied to the system, these bulk plasmons are still non-oscillating and are isolated from the magnetoplasmons by the energy gap of the cyclotron frequency. These are mainly in a transverse magnetic mode and can combine with a transverse electronic mode locally at an edge of the system to form edge magnetoplasmons. With this observation, we reveal the intrinsic long lifetime of edge magnetoplasmons for the first time.

7 pages, 4 figures

References in corpus (5)

• Dielectric function, screening, and plasmons in 2D graphene
• Dynamical polarization of graphene at finite doping
• A new electromagnetic mode in graphene
• Magnetic field tuning of terahertz Dirac plasmons in graphene
• Effects of Screening on Propagation of Graphene Surface Plasmons

Cited by in corpus (7)

• Hall and dissipative viscosity effects on edge magnetoplasmons
• Theory of intraband plasmons in doped carbon nanotubes: rolled surface-plasmons of graphene
• Plasmon geometric phase and plasmon Hall shift
• Undamped relativistic magnetoplasmons in lossy two-dimensional electron systems
• Band Structures of Edge Magnetoplasmon Crystals
• Kerr and Faraday rotations in topological flat and dispersive band structures
• Residual gauge theory for quanta of surface plasmons