A new type of vacancy-induced localized states in multilayer graphene
Materials Science
2010-02-05 v2 Mesoscale and Nanoscale Physics
Abstract
We demonstrate the existence of a new type of zero energy state associated to vacancies in multilayer graphene that has a finite amplitude over the layer with a vacancy and adjacent layers, and the peculiarity of being quasi-localized in the former and totally delocalized in the adjacent ones. In a bilayer, when a gap is induced in the system by applying a perpendicular electric field, these states become truly localized with a normalizable wavefunction. A transition from a localized to an extended state can be tuned by the external gate for experimentally accessible values of parameters.
Keywords
Cite
@article{arxiv.0906.4061,
title = {A new type of vacancy-induced localized states in multilayer graphene},
author = {Eduardo V. Castro and María P. López-Sancho and María A. H. Vozmediano},
journal= {arXiv preprint arXiv:0906.4061},
year = {2010}
}
Comments
4.1 pages, 4 figures (published version)