Diamagnetism of graphene with long-range scatterers

Masaki Noro, Mikito Koshino, Tsuneya Ando

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The diamagnetic susceptibility of disordered monolayer graphene containing scatterers with long-range potential is calculated in a self-consistent Born approximation. Explicit numerical results are obtained for a Gaussian potential. The results show that the delta-function susceptibility in the ideal graphene is broadened by disorder and that the broadening is determined by the condition that states can be mixed with those at the Dirac point. For charged impurities, the susceptibility exhibits a double-peak structure as a function of the Fermi energy at zero temperature, due to the rapid decrease in effective scattering strength with the increase of the Fermi level.

Original languageEnglish
Article number114701
Journaljournal of the physical society of japan
Volume80
Issue number11
DOIs
Publication statusPublished - 2011 Nov

Keywords

  • Dirac point
  • Impurity scattering
  • Level broadening
  • Two-dimensional graphite

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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