Electrical Switching in Metallic Carbon Nanotubes
Materials Science
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
We present first-principles calculations of quantum transport which show that the resistance of metallic carbon nanotubes can be changed dramatically with homogeneous transverse electric fields if the nanotubes have impurities or defects. The change of the resistance is predicted to range over more than two orders of magnitude with experimentally attainable electric fields. This novel property has its origin that backscattering of conduction electrons by impurities or defects in the nanotubes is strongly dependent on the strength and/or direction of the applied electric fields. We expect this property to open a path to new device applications of metallic carbon nanotubes.
Cite
@article{arxiv.cond-mat/0511447,
title = {Electrical Switching in Metallic Carbon Nanotubes},
author = {Young-Woo Son and Jisoon Ihm and Marvin L. Cohen and Steven G. Louie and Hyoung Joon Choi},
journal= {arXiv preprint arXiv:cond-mat/0511447},
year = {2007}
}
Comments
4 pages and 4 figures