Interference Blockade in the Conductance of Organic Molecules
Mesoscale and Nanoscale Physics
2007-05-23 v2 Materials Science
Abstract
The conductance of {\em cis/trans} isomers of stilbene molecules connected to armchair single wall carbon nanotubes is studied in the Landauer formalism combined with a density-functional based approach. For a given arrangement of the electrodes, dramatic differences in the transmission between both isomers are found. For a given isomer, the conductance can be varied by orders of magnitude by changing the molecule-electrode relative orientation. Both effects can be explained by a simple, physically transparent interference rule, which suggests a straightforward conductance control in such molecular systems by different switching mechanisms.
Cite
@article{arxiv.cond-mat/0211506,
title = {Interference Blockade in the Conductance of Organic Molecules},
author = {R. Gutierrez and F. Grossmann and R. Schmidt},
journal= {arXiv preprint arXiv:cond-mat/0211506},
year = {2007}
}