Interlayer interaction and electronic screening in multilayer graphene

Details Interlayer interaction and electronic screening in multilayer graphene Interlayer interaction and electronic screening in multilayer graphene

2006-12-07

arxiv.org/abs/cond-mat/0612173v1

Physics

Condensed Matter

Materials Science

Scientific paper

The unusual transport properties of graphene are the direct consequence of a peculiar bandstructure near the Dirac point. We determine the shape of the pi bands and their characteristic splitting, and the transition from a pure 2D to quasi-2D behavior for 1 to 4 layers of graphene by angle-resolved photoemission. By exploiting the sensitivity of the pi bands to the electronic potential, we derive the layer-dependent carrier concentration, screening length and strength of interlayer interaction by comparison with tight binding calculations, yielding a comprehensive description of multilayer graphene's electronic structure.

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