▎ 摘　　要

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) over tilde (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) root 3 with p, q positive integers. Other features are also discussed. (C) 2009 Elsevier B.V. All rights reserved.