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VOLUME 73 (2001) | ISSUE 10 | PAGE 631
Dirac fermions on graphite cones
PACS: 73.20.Dx, 73.50.Jt, 73.61.Wp
Abstract
The electronic structure of graphitic cones is investigated within the self-consistent field-theory model. The local and total density of states near the apex is found for cones of different opening angles. For extended electronic states, total density of states is found to vanish at the Fermi level at any opening angles more than 60°. In turn, for power-law localized states, normalized zero-energy modes are shown to emerge.