Metallic proximity effect in ballistic graphene with resonant scatterers
Mesoscale and Nanoscale Physics
2010-02-17 v1
Abstract
We study the effect of resonant scatterers on the local density of states in a rectangular graphene setup with metallic leads. We find that the density of states in a vicinity of the Dirac point acquires a strong position dependence due to both metallic proximity effect and impurity scattering. This effect may prevent uniform gating of weakly-doped samples. We also demonstrate that even a single-atom impurity may essentially alter electronic states at low-doping on distances of the order of the sample size from the impurity.
Keywords
Cite
@article{arxiv.0910.2339,
title = {Metallic proximity effect in ballistic graphene with resonant scatterers},
author = {M. Titov and P. M. Ostrovsky and I. V. Gornyi},
journal= {arXiv preprint arXiv:0910.2339},
year = {2010}
}
Comments
9 pages, 2 figures