Conductance through analytic constrictions
Materials Science
2009-11-13 v1
Abstract
We study the dependence of the intrinsic conductance of a nanocontact on its shape by using the recursion-transfer-matrix method. Hour-glass, torus, and spherical shapes are defined through analytic potentials, the latter two serving as rough models for ring-like and spherical molecules, respectively. The sensitivity of the conductance to geometric details is analyzed and discussed. Strong resonance effects are found for a spherical contact weakly coupled to electron reservoirs.
Cite
@article{arxiv.0808.3670,
title = {Conductance through analytic constrictions},
author = {D. Koudela and A. -M. Uimonen and H. Häkkinen},
journal= {arXiv preprint arXiv:0808.3670},
year = {2009}
}
Comments
7 pages, 12 figures