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First-principles study of the Haldane model in artificial graphene

Lannebère, S. ; Silveirinha, M. G.

First-principles study of the Haldane model in artificial graphene, Proc Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS, Marseille, France, Vol. , pp. - , August, 2017.

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Abstract
We present a first-principles study of the Haldane model in an “artificial graphene”
platform formed by a two-dimensional electron gas modulated by an electrostatic potential with
the honeycomb symmetry and by a static spatially-varying magnetic field. The relation between
the tight-binding parameters and the actual physical parameters is found. The overall topo-
logical properties of the material are determined and compared to the Haldane’s theory, and
the consequences of a quantized Hall conductivity on the photonic topological properties are
discussed.