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arXiv · 0908.0653

Numerical simulation evidence of spectrum rearrangement in impure graphene

S. S. Pershoguba·Yu. V. Skrypnyk·V. M. Loktev
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Abstract

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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S. S. Pershoguba, Yu. V. Skrypnyk, V. M. Loktev. 2009-08-05. Numerical simulation evidence of spectrum rearrangement in impure graphene. https://doi.org/10.1103/physrevb.80.214201

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