Eur. Phys. J. B (2012) 85: 338
https://doi.org/10.1140/epjb/e2012-30476-4

Regular Article

Electrical conductivity of zigzag carbon nanotubes including Holstein polarons

Department of Physics, Razi University, Department of Physics, Bagh-e-Abrisham, 6714967346 Kermanshah, Iran

^a e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Received: 15 June 2012
Received in final form: 2 August 2012
Published online: 3 October 2012

Abstract

Electrical conductivity of metallic zigzag carbon nanotube is investigated in the context of Holstein model using Green’s function approach. The effects of radius of carbon nanotube, temperature and electron phonon coupling strength on the electrical conductivity of zigzag nanotubes are investigated. It is seen that electrical conductivity increases as a function of temperature at low temperature and gets a maximum value then decays at high temperature. Moreover electrical conductivity increases when CNT diameter increases and decreases with electron phonon interaction strength.