Topological Phases in Graphitic Cones
- 11 December 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (24), 5190-5193
- https://doi.org/10.1103/physrevlett.85.5190
Abstract
The electronic structure of graphitic cones exhibits distinctive topological features associated with the apical disclinations. Aharonov-Bohm magnetoconductance oscillations (period Phi_0) are completely absent in rings fabricated from cones with a single pentagonal disclination. Close to the apex, the local density of states changes qualitatively, either developing a cusp which drops to zero at the Fermi energy, or forming a region of nonzero density across the Fermi energy, a local metalization of graphene.Comment: 4 pages, RevTeX 4, 3 PostScript figureKeywords
This publication has 15 references indexed in Scilit:
- Geometrical perturbation of graphene electronic structurePhysical Review B, 2000
- Electronic properties of polygonal defects in graphitic carbon sheetsPhysical Review B, 1997
- Individual single-wall carbon nanotubes as quantum wiresNature, 1997
- Size, Shape, and Low Energy Electronic Structure of Carbon NanotubesPhysical Review Letters, 1997
- Electronic states of the cap structure in the carbon nanotubePhysical Review B, 1995
- Disclinations of monolayer graphite and their electronic statesPhysical Review B, 1994
- New one-dimensional conductors: Graphitic microtubulesPhysical Review Letters, 1992
- Are fullerene tubules metallic?Physical Review Letters, 1992
- Magnetic flux effects in disordered conductorsReviews of Modern Physics, 1987
- Self-consistent effective-mass theory for intralayer screening in graphite intercalation compoundsPhysical Review B, 1984