%0 Journal Article
%T Gap generation in ABC-stacked multilayer graphene: screening vs band flattening
%A Junji Jia
%A E. V. Gorbar
%A V. P. Gusynin
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevB.88.205428
%X We calculate the dynamical polarization function and solve a self-consistent gap equation in the random phase approximation in undoped ABC-stacked n-layer graphene. We find that the gap is maximal in trilayer graphene and decreases monotonously for $n \ge 4$ because the effects of screening in the gap equation win over those connected with the flattening of electron bands as n increases.
%U http://arxiv.org/abs/1310.1040v2