Quantum interference through gated single-molecule junctions
Mesoscale and Nanoscale Physics
2015-06-16 v1
Abstract
We discuss the general form of the transmission spectrum through a molec- ular junction in terms of the Green function of the isolated molecule. By introducing a tight binding method, we are able to translate the Green func- tion properties into practical graphical rules for assessing beforehand the possible existence of antiresonances in an energy range for a given choice of connecting sites. The analysis is exemplified with a benzene molecule under a hypothetical local gate, which allows one to continuously tune the on-site energy of single atoms, for various connection topologies and gate positions.
Keywords
Cite
@article{arxiv.1305.6293,
title = {Quantum interference through gated single-molecule junctions},
author = {Daniel A. Lovey and Rodolfo H. Romero},
journal= {arXiv preprint arXiv:1305.6293},
year = {2015}
}
Comments
17 pages, 5 figures