Effect of disorder on the ground-state properties of graphene
Mesoscale and Nanoscale Physics
2009-11-13 v2 Disordered Systems and Neural Networks
Abstract
We calculate the ground-state energy of Dirac electrons in graphene in the presence of disorder. We take randomly distributed charged impurities at a fixed distance from the graphene sheet and surface fluctuations (ripples) as the main scattering mechanisms. Mode-coupling approach to scattering rate and random-phase approximation for ground-state energy incorporating the many-body interactions and the disorder effects yields good agreement with experimental inverse compressibility.
Keywords
Cite
@article{arxiv.0711.3511,
title = {Effect of disorder on the ground-state properties of graphene},
author = {R. Asgari and M. M. Vazifeh and M. R. Ramezanali and E. Davoudi and B. Tanatar},
journal= {arXiv preprint arXiv:0711.3511},
year = {2009}
}
Comments
Extended introduction and discussion. To appear in Phys. Rev. B