Proximity and anomalous field-effect characteristics in double-wall carbon nanotubes
Mesoscale and Nanoscale Physics
2009-11-11 v1 Other Condensed Matter
Abstract
Proximity effect on field-effect characteristic (FEC) in double-wall carbon nanotubes (DWCNTs) is investigated. In a semiconductor-metal (S-M) DWCNT, the penetration of electron wavefunctions in the metallic shell to the semiconducting shell turns the original semiconducting tube into a metal with a non-zero local density of states at the Fermi level. By using a two-band tight-binding model on a ladder of two legs, it is demonstrated that anomalous FEC observed in so-called S-M type DWCNTs can be fully understood by the proximity effect of metallic phases.
Keywords
Cite
@article{arxiv.cond-mat/0603577,
title = {Proximity and anomalous field-effect characteristics in double-wall carbon nanotubes},
author = {Jie Lu and Sun Yin and Z. Z. Sun and X. R. Wang and L. M. Peng},
journal= {arXiv preprint arXiv:cond-mat/0603577},
year = {2009}
}
Comments
4 pages, 4 figures