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arXiv · 1012.1374

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

A. J. Chaves·G. D. Lima·W. de Paula·C. E. Cordeiro·A. Delfino·T. Frederico·O. Oliveira
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Abstract

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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A. J. Chaves, G. D. Lima, W. de Paula, C. E. Cordeiro, A. Delfino, T. Frederico, O. Oliveira. 2011-04-22. Dynamical gap generation in graphene nanoribbons: An effective relativistic field theoretical model. https://doi.org/10.1103/physrevb.83.153405

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