Electronic structure of negatively curved graphene
Materials Science
2009-11-13 v1
Abstract
We study the electronic structure of graphene in the presence of either sevenfolds or eightfolds by using a gauge field-theory model. The graphene sheet with topological defects is considered as a negative cone surface with infinite Gaussian curvature at the center. The density of electronic states is calculated for a single seven- and eightfold as well as for a pair of sevenfolds with different morphology. The density of states at the Fermi energy is found to be zero in all cases except two sevenfolds with translational factor .
Cite
@article{arxiv.0803.3387,
title = {Electronic structure of negatively curved graphene},
author = {D. V. Kolesnikov and V. A. Osipov},
journal= {arXiv preprint arXiv:0803.3387},
year = {2009}
}
Comments
To be published in JETP Letters