We investigate a modified Anderson model to study the local density of states (LDOS) of a molecular wire adsorbed on a metal. Using a self-consistent mean-field type approach we find an exponential decay of the LDOS along the molecule. A repulsive on-site interaction on the molecule suppresses the tunneling and decreases the characteristic decay length.
@article{arxiv.cond-mat/0003410,
title = {Anderson-type model for a molecule adsorbed on a metal surface},
author = {Mahn-Soo Choi and C. Bruder},
journal= {arXiv preprint arXiv:cond-mat/0003410},
year = {2009}
}
Comments
7 pages (using europhys.sty), 5 EPS figures, To appear in Europhys. Lett