Table of Contents Author Guidelines Submit a Manuscript
The Scientific World Journal
Volume 2014 (2014), Article ID 581478, 6 pages
http://dx.doi.org/10.1155/2014/581478
Research Article

Flake Electrical Conductivity of Few-Layer Graphene

1Department of Physics, Razi University, Kermanshah, Iran
2Nanoscience and Nanotechnology Research Center, Razi University, Kermanshah, Iran

Received 24 August 2013; Accepted 20 October 2013; Published 16 January 2014

Academic Editors: K. Liu, S. K. Yang, and T. Zhou

Copyright © 2014 Hamze Mousavi and Jabbar Khodadadi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Kubo formula for the electrical conductivity of per stratum of few-layer graphene, up to five, is analytically calculated in both simple and Bernal structures within the tight-binding Hamiltonian model and Green's function technique, compared with the single-layer one. The results show that, by increasing the layers of the graphene as well as the interlayer hopping of the nonhybridized orbitals, this conductivity decreases. Although the change in its magnitude varies less as the layer number increases to beyond two,distinguishably, at low temperatures, it exhibits a small deviation from linear behavior. Moreover, the simple bilayer graphene represents more conductivity with respect to the Bernal case.