Table of Contents
Crystals, Volume 7, Issue 8 (August 2017)
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Cover Story Graphene, a monoatomic layer of carbon atoms arranged on a honeycomb lattice, exhibits [...] Read more. Graphene, a monoatomic layer of carbon atoms arranged on a honeycomb lattice, exhibits extraordinary electronic properties resulting from its peculiar band structure. The conductance and valence band touch each other conically at the corners of the hexagonal Brillouin zone leading to a linear dispersion relation and, thus, the relativistic phenomena exhibited by graphene. With increasing energy the dispersion relation changes from linear to quadratic. This transition takes place at its saddle points, which correspond to the van Hove singularities. View Paper here