Go to content
UR Home

Dynamical polarizability of graphene beyond the Dirac cone approximation

URN to cite this document:
urn:nbn:de:bvb:355-epub-243019
DOI to cite this document:
10.5283/epub.24301
Stauber, Tobias ; Schliemann, John ; Peres, N. M. R.
[img]
Preview
PDF
(446kB)
Date of publication of this fulltext: 11 May 2012 09:49


Abstract

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 ...

plus


Owner only: item control page
  1. Homepage UR

University Library

Publication Server

Contact:

Publishing: oa@ur.de
0941 943 -4239 or -69394

Dissertations: dissertationen@ur.de
0941 943 -3904

Research data: datahub@ur.de
0941 943 -5707

Contact persons