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arXiv · 0903.4220

Photo-induced Hall Effect in Graphene -- Effect of Boundary Types

Takashi Oka·Hideo Aoki
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Abstract

We theoretically predict, with the Keldysh Green's function combined with the Floquet method, that the AC electric field of a circularly polarized light should induce a Hall effect, in the absence of uniform magnetic fields, in graphene with a pair of Dirac dispersions. Although the Hall coefficient is not quantized, the dynamical gap generated by the AC field and the associated Hall effect bear a topological origin which can be traced back to the Dirac cones. We also study the dependence on boundary conditions. The required AC field strength is estimated to be realistic.

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Takashi Oka, Hideo Aoki. 2009-03-25. Photo-induced Hall Effect in Graphene -- Effect of Boundary Types. https://doi.org/10.1088/1742-6596%2F148%2F1%2F012061

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