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: rezania.hamed@gmail.com
Received:
15
June
2012
Received in final form:
2
August
2012
Published online:
3
October
2012
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.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012
