Go to content
UR Home

Dynamical polarizability of graphene beyond the Dirac cone approximation

URN to cite this document:
Stauber, Tobias ; Schliemann, John ; Peres, N. M. R.
Date of publication of this fulltext: 11 May 2012 09:49


We compute the dynamical polarizability of graphene beyond the usual Dirac cone approximation, integrating over the full Brillouin zone. We find deviations at ℏω=2t (where t is the hopping parameter) which amount to a logarithmic singularity due to the Van Hove singularity and derive an approximate analytical expression. Also at low energies, we find deviations from the results obtained from the ...


Owner only: item control page
  1. Homepage UR

University Library

Publication Server


Publishing: oa@ur.de

Dissertations: dissertationen@ur.de

Research data: daten@ur.de

Contact persons