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Physical Review B
Multiple five-and seven-membered rings in graphene surfaces have long-range effects which are very sensitive to their relative placement. The sensitivity is described by an "nϪm" combination rule derived here. This rule classifies graphene cones by the localized fictitious gauge flux through their apices, leading to two classes of graphene cones with two apical pentagons. The local density of states vanishes at the Fermi energy in one class, but in the other, it is nonzero and decreasesdoi:10.1103/physrevb.69.035406 fatcat:dt6wzydcyzac3iodu25hjzo6yu