Abstract
Point contact spectroscopy on a 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 a transmission probability of , we used shot noise measurements to analyze the transmission and observed at least two channels across the junction where the dominant channel has a transmission probability at the crossover conductance, which is consistent with the predictions for single-channel models.
- Received 20 January 2008
DOI:https://doi.org/10.1103/PhysRevLett.100.196804
©2008 American Physical Society