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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-460981
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.46098
Zusammenfassung
The density of states ϱ(E) of graphene is investigated within the tight-binding (Hückel) approximation in the presence of vacancies. They introduce a nonvanishing density of zero modes nzm that act as midgap states, ϱ(E)=nzmδ(E)+smooth. As is well known, the actual number of zero modes per sample can, in principle, exceed the sublattice imbalance, Nzm≥∣∣NA−NB∣∣, where NA,NB denote the number of ...
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