Condensed Matter Theory   Universität Basel
Dr. Jörg Lehmann

Molecular wires in electromagnetic fields

S. Kohler, J. Lehmann, M. Strass, and P. Hänggi

Adv. Solid State Phys. 44, 157 (2004)

We investigate the role of external electromagnetic fields on the conduction properties of bridged molecular wires. In particular, it is analyzed quantitatively how resonant excitations of electrons enhance the dc current and, simultaneously, lower the noise level of the current. The results from an exact numerical treatment are in good agreement with those obtained within an approximation scheme applicable at resonances.

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Uni Basel » Department of Physics » Condensed Matter Theory
last updated on 2008/03/19