Cotunneling model for current-induced events in molecular wires

Thorsten Hansen, Vladimiro Mujica, Mark A. Ratner

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)3525-3531
Number of pages7
JournalNano Letters
Issue number10
StatePublished - Oct 1 2008
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


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