Friday, March 23, 2012

1203.5044 (Sergey Slizovskiy et al.)

Nonlinear magnetization of graphene    [PDF]

Sergey Slizovskiy, Joseph Betouras
We compute the magnetization of graphene, taking into account a possible mass gap. We show that the magnetization shows non-linear behaviour, reflecting the strong non-analyticity of the two-dimensional effective action of Dirac electrons. The necessary values of the magnetic field to observe this non-linearity vary from a few Teslas for clean samples to few tens of Teslas for lower-quality samples. 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.
View original: http://arxiv.org/abs/1203.5044

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