Nonlinear transport through a nanoscale molecule.
A simple model of electrical transport through a metal-aromatic molecule-metal system that includes charging effects as well as aspects of the electronic structure of the molecule, is presented. The interplay of a large charging energy and an asymmetry of the metal-molecule coupling can lead to various effects in nonlinear electrical transport. In particular, strong negative differential conductance is observed under certain conditions.
Hettler
Matthias H
MH
Forschungszentrum Karlsruhe, Institut für Nanotechnologie, Postfach, D-76021 Karlsruhe, Germany. hettler@int.fzk.de
Schoeller
Herbert
H
D004583:Electrons; D008956:Models, Chemical; D015233:Models, Statistical; D036103:Nanotechnology / Q000379:methods*; D013696:Temperature