Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes
Mesoscale and Nanoscale Physics
2012-02-23 v1
Abstract
We present a theoretical model accounting for the anomalous Fabry-Perot pattern observed in the ballistic conductance of a single-wall carbon nanotubes. Using the scattering field theory, it is shown that the presence of a limited number of impurities along the nanotube can be identified by a measurement of the conductance and their position determined. Impurities can be made active or silent depending on the interaction with the substrate via the back-gate. The conceptual steps for designing a bio-molecules detector are briefly discussed.
Keywords
Cite
@article{arxiv.1109.1104,
title = {Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes},
author = {F. Romeo and R. Citro and A. Di Bartolomeo},
journal= {arXiv preprint arXiv:1109.1104},
year = {2012}
}
Comments
4 pages, 4 figures