Effect of Electric Field on the Band Structure of Graphene/BN and BN/BN Bilayers

Details Effect of Electric Field on the Band Structure of Graphene/BN and BN/BN Bilayers Effect of Electric Field on the Band Structure of Graphene/BN and BN/BN Bilayers

2011-08-08

arxiv.org/abs/1108.1814v1

Physics

Condensed Matter

Materials Science

Scientific paper

Effect of electric field on the band structures of graphene/BN and BN/BN bilayers is investigated within the framework of density functional theory. A relatively large degree of modulation is predicted for the graphene/BN bilayer. The calculated band gap of the graphene/BN bilayer increases with applied electric field, which is not the case of BN/BN bilayer; its band gap decreases with the applied field. Both features in the bilayers considered appear to be related to the nature of the conduction band and the redistribution of the electronic charge of the bilayer systems under the influence of electric field

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