Phys. Rev. Lett. 96, 166803 (2006) [4 pages]Molecular Transport Junctions: Current from Electronic Excitations in the LeadsReceived 17 November 2005; published 25 April 2006 Using a model comprising a two-level bridge connecting free electron reservoirs we show that coupling of a molecular bridge to electron-hole excitations in the leads can markedly effect the source-drain current through a molecular junction. In some cases, e.g., molecules that exhibit strong charge transfer transitions, the contribution from electron-hole excitations can exceed the Landauer elastic current and dominate the observed conduction. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.166803
DOI:
10.1103/PhysRevLett.96.166803
PACS:
73.23.−b, 73.50.Lw, 85.65.+h, 85.80.−b
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