Band structure and gaps of triangular graphene superlattices
Date of this Version11-1-2010
F. Guinea and T. Low, Phi. Trans. Roy. Soc. A 368, 5391 (2010)
This document has been peer-reviewed.
The general properties of long wavelength triangular graphene superlattices are studied. It is shown that Dirac points with and without gaps can arise at a number of high symmetry points of the Brillouin zone. The existence of gaps can lead to insulating behavior at commensurate fillings. Strain and magnetic superlattices are also discussed.
Condensed Matter Physics | Quantum Physics