Electronic states and Landau levels in graphene stacks
作者： F. Guinea , A. H. Castro Neto , N. M. R. Peres
DOI: 10.1103/PHYSREVB.73.245426
关键词: Physics 、 Landau quantization 、 Electronic structure 、 Minimal model 、 Density of states 、 Stacking 、 Graphene 、 Surface (mathematics) 、 Surface states 、 Condensed matter physics
摘要: We analyze, within a minimal model that allows analytical calculations, the electronic structure and Landau levels of graphene multilayers with different stacking orders. We find, among other results, that electrostatic effects can induce a strongly divergent density of states in bilayers and trilayers, 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.
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