Dynamical polarization of graphene under strain
Mesoscale and Nanoscale Physics
2010-09-21 v1
Abstract
We study the dependence of the plasmon dispersion relation of graphene on applied uniaxial strain. Besides electron correlation at the RPA level, we also include local field effects specific for the honeycomb lattice. As a consequence of the two-band character of the electronic band structure, we find two distinct plasmon branches. We recover the square-root behavior of the low-energy branch, and find a nonmonotonic dependence of the strain-induced modification of its stiffness, as a function of the wavevector orientation with respect to applied strain.
Cite
@article{arxiv.1008.4454,
title = {Dynamical polarization of graphene under strain},
author = {F. M. D. Pellegrino and G. G. N. Angilella and R. Pucci},
journal= {arXiv preprint arXiv:1008.4454},
year = {2010}
}
Comments
Phys. Rev. B, accepted