Edge magnetoplasmons and the optical excitations in graphene disks
Journal article, 2012

We discuss the edge magnetoplasmon properties in highly doped graphene disks, and the corresponding optical excitations. Edge magnetoplasmons with nonzero angular momentum (l not equal 0) have two branches corresponding to different edge current rotations with respect to the magnetic field. The resonance energies of one branch are blueshifted and the other redshifted relative to energies at B = 0, with the energy differences linearly proportional to the magnetic field. Recently, the l = 1 dipole mode has been investigated by two experiments using optical transmission spectroscopy [Crassee et al., Nano Lett. 12, 2470 (2012); Yan et al., ibid. 12, 3766 (2012)], and classical cyclotron resonances were found in highly doped graphene samples. These are determined by graphene magneto-optical conductivities, which behave like a conventional two-dimensional electron system in the high doping limit.

monolayer graphene

2-dimensional electron-gas

photonics

plasmons

Author

Weihua Wang

Chalmers, Applied Physics, Condensed Matter Theory

Peter Apell

Chalmers, Applied Physics, Condensed Matter Theory

Jari Kinaret

Chalmers, Applied Physics, Condensed Matter Theory

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 86 12

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Physical Sciences

DOI

10.1103/PhysRevB.86.125450

More information

Created

10/7/2017