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Cotunneling model for current-induced events in molecular wires

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Many phenomena in molecular transport junctions involve transitions between electronic states of the molecular wire, and, therefore, cannot be described adequately using the Landauer picture. We present a model for cotunneling processes in molecular wires. These are coherent second-order processes that can be observed at low temperatures. As an example, we consider the STM-induced dissociation of acetylene. The large voltage threshold for dissociation observed experimentally is naturally accounted for within the cotunneling model.

OriginalsprogEngelsk
TidsskriftNano Letters
Vol/bind8
Udgave nummer10
Sider (fra-til)3525-3531
Antal sider7
ISSN1530-6984
DOI
StatusUdgivet - 1 okt. 2008

ID: 209793706