Local density of states subject to finite impurity concentration in graphene

Details Local density of states subject to finite impurity concentration in graphene Local density of states subject to finite impurity concentration in graphene

2006-10-29

arxiv.org/abs/cond-mat/0610811v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages 2 figures

Scientific paper

It is demonstrated that there is a characteristic impurity concentration, at which variation with concentration and overall appearance of the local density of states at the impurity site in graphene are changing their behavior. Features that are prominent in the local density of states for the single impurity are disappearing from it when impurity concentration far exceeds this critical value. The impurity subsystem not only induces the rearrangement of the electron spectrum in graphene, but also undergoes a substantial spectral transformation by itself, which can be observed experimentally.

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