Volume 50, Number 5, June I 2000
|Page(s)||642 - 648|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Anderson-type model for a molecule adsorbed on a metal surface
Departement Physik und Astronomie, Universität Basel
Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Accepted: 21 March 2000
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.
PACS: 73.40.Gk – Tunneling / 85.65.+h – Molecular electronic devices / 61.16.Ch – Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc
© EDP Sciences, 2000
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