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arXiv · 0801.3031

Electron-vibration interaction in single-molecule junctions: from contact to tunneling regime

O. Tal·M. Krieger·B. Leerink·J. M. van Ruitenbeek
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Abstract

Point contact spectroscopy on a H2O molecule bridging Pt electrodes reveals a clear crossover between enhancement and reduction of the conductance due to electron-vibration interaction. As single channel models predict such a crossover at transmission probability of t=0.5, we used shot noise measurements to analyze the transmission and observed at least two channels across the junction where the dominant channel has t=0.51+/-0.01 transmission probability at the crossover conductance, which is consistent with the predictions for single-channel models.

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O. Tal, M. Krieger, B. Leerink, J. M. van Ruitenbeek. 2008-01-21. Electron-vibration interaction in single-molecule junctions: from contact to tunneling regime. https://doi.org/10.1103/physrevlett.100.196804

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