Electron-Vibration Interaction in Single-Molecule Junctions: From Contact to Tunneling Regimes

2008/01/21 by Oren Tal, O. Tal, M. Krieger +2 · 4 citations
Engineering · Physics and Astronomy · #Force Microscopy Techniques and Applications #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.100.196804

published as Phys. Rev. Lett, 100, 196804 (2008) · 4 pages, 1 table, 4 figures

arxiv created 2008/01/21 · openalex publication_date 2008/05/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

Point contact spectroscopy on a H(2)O 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 tau=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 a tau=0.51 +/- 0.01 transmission probability at the crossover conductance, which is consistent with the predictions for single-channel models.

Citations

• Vibration-induced correction to the current through a single molecule
• Inelastic Electron Tunneling via Molecular Vibrations in Single-Molecule Transistors
• Shot noise in mesoscopic conductors
• Electrical resistance of disordered one-dimensional lattices

Cited by

• Unified Description of Inelastic Propensity Rules for Electron Transport through Nanoscale Junctions
• Transient dynamics of a molecular quantum dot with a vibrational degree of freedom
• Highly Conductive Molecular Junctions Based on Direct Binding of Benzene to Platinum Electrodes
• Conductance of atomic-scale Pb contacts in an electrochemical environment
• Efficiency fluctuations in quantum thermoelectric devices