Disorder Induced Localized States in Graphene

Details Disorder Induced Localized States in Graphene Disorder Induced Localized States in Graphene

2005-08-22

arxiv.org/abs/cond-mat/0508530v2

Phys. Rev. Lett. 96, 036801 (2006)

Physics

Condensed Matter

Materials Science

Replaced with published version. 4 pages, 4 figures. Fig. 1 was revised

Scientific paper

10.1103/PhysRevLett.96.036801

We consider the electronic structure near vacancies in the half-filled honeycomb lattice. It is shown that vacancies induce the formation of localized states. When particle-hole symmetry is broken, localized states become resonances close to the Fermi level. We also study the problem of a finite density of vacancies, obtaining the electronic density of states, and discussing the issue of electronic localization in these systems. Our results also have relevance for the problem of disorder in d-wave superconductors.

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