Symmetry Breaking in Few Layer Graphene Films

Details Symmetry Breaking in Few Layer Graphene Films Symmetry Breaking in Few Layer Graphene Films

2007-05-25

arxiv.org/abs/0705.3705v1

Physics

Condensed Matter

Strongly Correlated Electrons

23 pages, 13 figures, Conference Proceedings of DPG Meeting Mar 2007 Regensburg Submitted to New Journal of Physics

Scientific paper

10.1088/1367-2630/9/10/385

Recently, it was demonstrated that the quasiparticle dynamics, the layer-dependent charge and potential, and the c-axis screening coefficient could be extracted from measurements of the spectral function of few layer graphene films grown epitaxially on SiC using angle-resolved photoemission spectroscopy (ARPES). In this article we review these findings, and present detailed methodology for extracting such parameters from ARPES. We also present detailed arguments against the possibility of an energy gap at the Dirac crossing ED.

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