Journal
SOLID STATE COMMUNICATIONS
Volume 143, Issue 1-2, Pages 110-115Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2007.03.054
Keywords
nanostructures; electronic band structure; optical properties; electronic transport
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Electrons in bilayer graphene possess an unusual property: they are chiral quasiparticles characterized by Berry phase 2 pi. We review the tight-binding model of bilayer graphene which determines the band structure and low-energy quasiparticle properties of this material and we describe the optical manifestation of the existence of a pair of split-bands and low-energy branches in the bilayer spectrum. Then, we analyze the stability of a bilayer with respect to a ferroelectric transition and we model the self-consistent control of the interlayer asymmetry gap induced by a transverse electric field in a graphene-based field-effect transistor. (c) 2007 Elsevier Ltd. All rights reserved.
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