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Interlayer asymmetry gap in the electronic band structure of bilayer graphene.

McCann, Edward (2007) Interlayer asymmetry gap in the electronic band structure of bilayer graphene. physica status solidi (b), 244 (11). pp. 4112-4117. ISSN 0370-1972

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Abstract

The low-energy electronic band structure of bilayer graphene consists of four bands: a pair of bands split from zero energy by the interlayer coupling and a pair of bands which touch at zero energy in a nominally undoped system. The latter support massive, chiral quasiparticles with a parabolic dispersion and Berry phase 2. Asymmetry between the potential energies of the layers opens a tuneable gap between the conduction and valence bands. A self-consistent Hartree approximation is used to model the control of such an interlayer asymmetry gap induced by a transverse electric field in a graphene-based field-effect transistor.

Item Type: Article
Journal or Publication Title: physica status solidi (b)
Additional Information: This is a pre-print of an article published in Physica Status Solidi B, 244 (11), 2007. (c) Wiley.
Uncontrolled Keywords: 73.21.-b • 73.63.-b • 81.05.Uw
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 11377
Deposited By: Dr Edward McCann
Deposited On: 14 Aug 2008 10:01
Refereed?: Yes
Published?: Published
Last Modified: 11 Dec 2016 01:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/11377

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