Nonlinear screening of charge impurities in graphene
Mesoscale and Nanoscale Physics
2007-05-23 v3 Materials Science
Abstract
It is shown that a ``vacuum polarization'' induced by Coulomb potential in graphene leads to a strong suppression of electric charges even for undoped case (no charge carriers). A standard linear response theory is therefore not applicable to describe the screening of charge impurities in graphene. In particular, it overestimates essentially the contributions of charge impurities into the resistivity of graphene.
Cite
@article{arxiv.cond-mat/0609026,
title = {Nonlinear screening of charge impurities in graphene},
author = {M. I. Katsnelson},
journal= {arXiv preprint arXiv:cond-mat/0609026},
year = {2007}
}
Comments
3 pages, 1 figure; final version as published in the journal