Band topology and the quantum spin Hall effect in bilayer graphene

@article{Prada2011BandTA,
  title={Band topology and the quantum spin Hall effect in bilayer graphene},
  author={E. Prada and Pablo Perez San-Jos{\'e} and L. Brey and H.A.Fertig},
  journal={Solid State Communications},
  year={2011},
  volume={151},
  pages={1075-1083}
}
  • E. Prada, Pablo Perez San-José, +1 author H.A.Fertig
  • Published 2011
  • Materials Science, Physics
  • Solid State Communications
  • Abstract We consider bilayer graphene in the presence of spin–orbit coupling, in order to assess its behavior as a topological insulator. The first Chern number n for the energy bands of single-layer graphene and that for the energy bands of bilayer graphene are computed and compared. It is shown that for a given valley and spin, n for a Bernal-stacked bilayer is doubled with respect to that for the monolayer. This implies that this form of bilayer graphene will have twice as many edge states… CONTINUE READING
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