Dynamical gap generation in graphene nanoribbons: An effective relativistic field theoretical model

Details Dynamical gap generation in graphene nanoribbons: An effective relativistic field theoretical model Dynamical gap generation in graphene nanoribbons: An effective relativistic field theoretical model

2010-12-07

arxiv.org/abs/1012.1374v2

Phys. Rev. B 83, 153405 (2011)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.83.153405

We show that the assumption of a nontrivial zero band gap for a graphene sheet within an effective relativistic field theoretical model description of interacting Dirac electrons on the surface of graphene describes the experimental band gap of graphene nanoribbons for a wide range of widths. The graphene band gap is dynamically generated, corresponding to a nontrivial gapless solution, found in the limit of an infinitely wide graphene ribbon. The nanoribbon band gap is determined by the experimental graphene work function.

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