Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene

Details Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene

2009-12-08

arxiv.org/abs/0912.1532v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We show that the changes in the electronic density of states (DOS) in graphene induced by impurity scattering with short-range potentials are completely different from those caused by the long-range Coulomb potential. The spectral weight of the state that eventually disappears into the valence band (as the strength of scattering increases) does not transform into a resonance state. Therefore no unusual screening effects related to a redistribution of the density of states in the valence band are observed. The states induced by the short-range impurities in graphene, therefore, have distinctively different properties compared with the long-range potential case. These properties, in fact, closely resemble the case of a short-range single impurity in other bipartite lattices, such as the square, body centered cubic, and simple cubic lattices.

Affiliated with

Also associated with

No associations

Rating

Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absence of a supercritical regime induced by short-range impurity scattering in gapped graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-386201