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VOLUME 79 (2004) | ISSUE 11 | PAGE 660
Electronic structure of carbon nanohorns near the Fermi level
PACS: 73.20.Dx, 73.50.Jt, 73.61.Wp
Abstract
The effect of pentagonal defects on the electronic structure at the tip of the carbon nanohorns is investigated within the continuum gauge field-theory model. It is found that the existence of a localized electron state at the Fermi level (a true zero-mode state) results in the enhanced charge density near the tip. Using a self-consistent perturbation scheme, the eigenfunctions and the local density of states near the pentagonal defects are numerically calculated.