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Hamburg 2001 – wissenschaftliches Programm

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TT: Tiefe Temperaturen

TT 8: Mesoskopische Systeme

TT 8.3: Vortrag

Dienstag, 27. März 2001, 10:45–11:00, A

Nonlinear Transport through a nanoscale molecule — •Matthias Hettler and Herbert Schoeller — Forschungszentrum Karlsruhe, Institut fuer Nanotechnologie, 76021 Karlsruhe, Germany

We present 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. The interplay of a large charging energy and an asymmetry of the metal–molecule coupling can lead to various effects in non–linear electrical transport. In particular, strong negative differential conductance is observed under certain conditions.

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