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Nonlinear magnetization of graphene

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journal contribution
posted on 17.07.2013, 14:35 by Sergey Slizovskiy, Joseph BetourasJoseph Betouras
We compute the magnetization of graphene in amagnetic field, taking into account for generality the possibility of a mass gap. We concentrate on the physical regime where quantum oscillations are not observed due to the effect of the temperature or disorder and show that the magnetization exhibits nonlinear behavior as a function of the applied field, reflecting the strong nonanalyticity of the two-dimensional effective action of Dirac electrons. The necessary values of the magnetic field to observe this nonlinearity vary from a few teslas for very clean suspended samples to 20–30 T for good samples on substrate. In the light of these calculations, we discuss the effects of disorder and interactions as well as the experimental conditions under which the predictions can be observed.

History

School

  • Science

Department

  • Physics

Citation

SLIZOVSKIY, S. and BETOURAS, J.J., 2012. Nonlinear magnetization of graphene. Physical Review B, 86 (125440), 7pp.

Publisher

© The American Physical Society

Version

VoR (Version of Record)

Publication date

2012

ISSN

1098-0121

Language

en

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