Symmetry Classification of Energy Bands in Graphene and Silicene

Eugene Kogan

Department of Physics, Bar-Ilan University, Ramat-Gan, Israel.

DOI: 10.4236/graphene.2013.22011                

Abstract

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.

Keywords

Graphene; Silicene; Group Theory; Dirac Points

Conflicts of Interest

The authors declare no conflicts of interest.

References

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