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. 2014 Apr 3;4(2):267–300. doi: 10.3390/nano4020267

Figure 4.

Figure 4

(a) Energy bands near the Fermi level in graphene. The first Brillouin zone of graphene is illustrated in the horizontal plane and labelled with some points of interest. The conduction and valence bands cross at points K and K'—the two non-equivalent corners of the zone, also known as the Dirac points; (b) Conic energy bands in the vicinity of the K and K' points; (c) Density of states near the Fermi level with Fermi energy EF. Reprinted with permission from [7]. Copyright 2009 Nature publishing group.