Comment on "Band structure engineering of graphene by strain: First-principles calculations"
Materials Science
2009-10-26 v2 Mesoscale and Nanoscale Physics
Abstract
In their first-principles calculations of the electronic band structure of graphene under uniaxial strain, Gui, Li, and Zhong [Phys. Rev. B \textbf{78}, 075435 (2008)] have found opening of band gaps at the Fermi level. This finding is in conflict with the tight-binding description of graphene which is closed gap for small strains. In this Comment, we present first-principles calculations which refute the claim that strain opens band gaps in graphene.
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Cite
@article{arxiv.0903.1702,
title = {Comment on "Band structure engineering of graphene by strain: First-principles calculations"},
author = {M. Farjam and H. Rafii-Tabar},
journal= {arXiv preprint arXiv:0903.1702},
year = {2009}
}
Comments
published version