Coherent charge transport through molecular wires: influence of strong Coulomb repulsion

Details Coherent charge transport through molecular wires: influence of strong Coulomb repulsion Coherent charge transport through molecular wires: influence of strong Coulomb repulsion

2005-05-27

arxiv.org/abs/cond-mat/0505680v2

Chem. Phys. 322, 193 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

15 pages, 4 figures, elsart style, accepted at Chem Phys

Scientific paper

10.1016/j.chemphys.2005.08.005

We derive a master equation for the electron transport through molecular wires in the limit of strong Coulomb repulsion. This approach is applied to two typical situations: First, we study transport through an open conduction channel for which we find that the current exhibits an ohmic-like behaviour. Second, we explore the transport properties of a bridged molecular wire, where the current decays exponentially as a function of the wire length. For both situations, we discuss the differences to the case of non-interacting electrons.

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