Electronic Properties and Hidden Symmetries of Graphene

Details Electronic Properties and Hidden Symmetries of Graphene Electronic Properties and Hidden Symmetries of Graphene

2010-08-26

arxiv.org/abs/1008.4470v1

Nucl.Phys.B829:523-533,2010

Physics

Condensed Matter

Strongly Correlated Electrons

13 pages, 4 figures

Scientific paper

10.1016/j.nuclphysb.2009.12.002

Using the relation between the structural and the electronic properties of honeycomb, we study the hidden SU(3) symmetry of the graphene monolayer and exhibit the link with its electronic properties. We show that the conservation law of incoming and outgoing electronic momenta at each site of graphene is solved in terms of SU(3) representations; and the Fourier waves {\phi}(k_{x},k_{y}) of the hopping electron may be classified by SU(3) highest weight multiplets {\phi}_{p,q}({\xi}). It is also shown that the phases arctan((k_{y})/(k_{x})) of the waves are quantized as (((p+q))/((p-q)))sqrt(3) with p, q positive integers. Other features are also discussed.

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