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Symmetry Classification of Energy Bands in Graphene and Silicene

Eugene Kogan
2013 Graphene  
We present the results of the symmetry classification of the electron energy bands in graphene and silicene using group theory algebra and the tight--binding approximation. The analysis is performed both in the absence and in the presence of the spin-orbit coupling. We also discuss the bands merging in the Brillouin zone symmetry points and the conditions for the latter to become Dirac points.
doi:10.4236/graphene.2013.22011 fatcat:ojunezjkbzfc5egriifpb3xkbu