Diamagnetism in disordered graphene

Mikito Koshino, Tsuneya Ando

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)

Abstract

The orbital magnetism is studied in graphene monolayer within the effective-mass approximation. In models of short-range and long-range disorders, the magnetization is calculated with self-consistent Born approximation. In the zero-field limit, the susceptibility becomes highly diamagnetic around zero energy, while it has a long tail proportional to the inverse of the Fermi energy. We demonstrated how the magnetic oscillation vanishes and converges to the susceptibility, in going from a strong-field regime to a weak-field regime. The behavior at zero energy is shown to be highly singular.

Original languageEnglish
Article number235333
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number23
DOIs
Publication statusPublished - 2007 Jun 29

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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