Issue |
Europhys. Lett.
Volume 57, Number 4, February 2002
|
|
---|---|---|
Page(s) | 571 - 577 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and opticalproperties | |
DOI | https://doi.org/10.1209/epl/i2002-00500-3 | |
Published online | 01 September 2002 |
Non-linear transport through a molecular nanojunction
1
Forschungszentrum Karlsruhe, Institut für Nanotechnologie
Postfach 3640, D-76021 Karlsruhe, Germany
2
RWTH Aachen, Theoretische Physik A - D-52056 Aachen, Germany
Received:
1
June
2001
Accepted:
29
November
2001
We present a simple model of electrical transport through a metal-molecule-metal nanojunction 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.
PACS: 73.63.-b – Electronic transport in mesoscopic or nanoscale materials and structures / 73.23.Hk – Coulomb blockade; single-electron tunneling / 73.22.-f – Electronic structure of nanoscale materials: clusters, nanoparticles, nano tubes, and nanocrystals
© EDP Sciences, 2002
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