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Impurity resonance effects in graphene versus impurity location, concentration, and sublattice occupation

Pogorelov, Yuriy G. ; Loktev, Vadim M. ; Kochan, Denis



Abstract

Unique electronic band structure of graphene with its semimetallic features near the charge neutrality point is sensitive to impurity effects. Using the Lifshitz and Anderson impurity models, we study in detail the disorder induced spectral phenomena in the electronic band structure of graphene, namely, the formation of resonances, quasigaps, bound states, impurity subbands, and their overall ...

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