Minimum Electrical and Thermal Conductivity of Graphene: A Quasiclassical Approach
Mesoscale and Nanoscale Physics
2011-11-10 v3 Materials Science
Abstract
We investigate the minimum conductivity of graphene within a quasiclassical approach taking into account electron-hole coherence effects which stem from the chiral nature of low energy excitations. Relying on an analytical solution of the kinetic equation in the electron-hole coherent and incoherent cases we study both the electrical and thermal conductivity whose relation fullfills Wiedemann-Franz law. We found that the most of the previous findings based on the Boltzmann equation are restricted to only high mobility samples where electron-hole coherence effects are not sufficient.
Keywords
Cite
@article{arxiv.0706.1888,
title = {Minimum Electrical and Thermal Conductivity of Graphene: A Quasiclassical Approach},
author = {Maxim Trushin and John Schliemann},
journal= {arXiv preprint arXiv:0706.1888},
year = {2011}
}
Comments
4 pages 1 figure (final version, as published in PRL)