Breaking of Nanotube Symmetry by Substrate Polarization
Materials Science
2015-06-24 v1
Abstract
Substrate and nanotube polarization are shown to change qualitatively a nanotube bandstructure. The effect is studied in a linear approximation in an external potential which causes the changes. A work function difference between the nanotube and gold surface is estimated to be large enough to break the band symmetry and lift a degeneracy of a lowest but one subband of a metallic nanotube. This subband splitting for [10,10] nanotube is about 50 meV in absence of other external potential.
Keywords
Cite
@article{arxiv.cond-mat/0304378,
title = {Breaking of Nanotube Symmetry by Substrate Polarization},
author = {Alexey G. Petrov and Slava V. Rotkin},
journal= {arXiv preprint arXiv:cond-mat/0304378},
year = {2015}
}
Comments
14 pages, 3 figures