We analyze, within a minimal model that allows analytical calculations, the electronic structure and Landau levels of graphene multi-layers with different stacking orders. We find, among other results, that electrostatic effects can induce a strongly divergent density of states in bi- and tri-layers, reminiscent of one-dimensional systems. The density of states at the surface of semi-infinite stacks, on the other hand, may vanish at low energies, or show a band of surface states, depending on the stacking order.
@article{arxiv.cond-mat/0604396,
title = {Electronic states and Landau levels in graphene stacks},
author = {F. Guinea and A. H. Castro Neto and N. M. R. Peres},
journal= {arXiv preprint arXiv:cond-mat/0604396},
year = {2009}
}