Optical Hall conductivity of gapped graphene

Details Optical Hall conductivity of gapped graphene Optical Hall conductivity of gapped graphene

2010-05-18

arxiv.org/abs/1005.3211v2

Physics

Condensed Matter

Materials Science

Scientific paper

We calculate the optical Hall conductivity for mono- and bilayer graphene within the Kubo formalism and demonstrate that the ratio of the jump in the Hall conductivity in bilayer graphene is twice the corresponding value of monolayer graphene. Furthermore, we find a characteristic logarithmic singularity as the frequency approaches the gap energy. The optical Hall conductivity is almost unaffected by thermal fluctuations and disorder in monolayer graphene. Only for bilayer graphene disorder has a stronger effect on transport properties.

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