Numerical simulation evidence of spectrum rearrangement in impure graphene

Details Numerical simulation evidence of spectrum rearrangement in impure graphene Numerical simulation evidence of spectrum rearrangement in impure graphene

2009-08-05

arxiv.org/abs/0908.0653v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

By means of numerical simulation we confirm that in graphene with point defects a quasigap opens in the vicinity of the resonance state with increasing impurity concentration. We prove that states inside this quasigap cannot longer be described by a wavevector and are strongly localized. We visualize states corresponding to the density of states maxima within the quasigap and show that they are yielded by impurity pair clusters.

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