Contact resistance of quantum tubes
Mesoscale and Nanoscale Physics
2007-05-23 v2
Abstract
We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial confinement. We calculate the transmission coefficients which yield the conductance via the Landauer formula. We relate our results to armchair carbon nanotubes embedded in a metal. For Al and Au contacts and tubes with a realistic radial confinement we find that the transmission can be close to unity corresponding to a contact resistance close to h/2e^2 per band at the Fermi level in the carbon nanotube.
Keywords
Cite
@article{arxiv.cond-mat/9907026,
title = {Contact resistance of quantum tubes},
author = {Niels Asger Mortensen and Kristinn Johnsen and Antti-Pekka Jauho and Karsten Flensberg},
journal= {arXiv preprint arXiv:cond-mat/9907026},
year = {2007}
}
Comments
13 pages including 5 figures. Accepted for publication in Superlattices and Microstructures. (stylefile included)