We study the effect of impurities in superconducting graphene and discuss their influence on the local electronic properties. In particular, we consider the case of magnetic and non-magnetic impurities being either strongly localized or acting as a potential averaged over one unit cell. The spin dependent local density of states is calculated and possibilities for visualizing impurities by means of scanning tunneling experiments is pointed out. A possibility of identifying magnetic scatters even by non spin-polarized scanning tunneling spectroscopy is explained.
@article{arxiv.0704.3115,
title = {Local impurity effects in superconducting graphene},
author = {T. O. Wehling and H. P. Dahal and A. I. Lichtenstein and A. V. Balatsky},
journal= {arXiv preprint arXiv:0704.3115},
year = {2008}
}