A conducting bridge of a single hydrogen molecule between Pt electrodes is formed in a break junction experiment. It has a conductance near the quantum unit, G_0 = 2e^2/h, carried by a single channel. Using point contact spectroscopy three vibration modes are observed and their variation upon stretching and isotope substitution is obtained. The interpretation of the experiment in terms of a Pt-H_2-Pt bridge is verified by Density Functional Theory calculations for the stability, vibrational modes, and conductance of the structure.
@article{arxiv.cond-mat/0409640,
title = {Stretching dependence of the vibration modes of a single-molecule Pt-H2-Pt bridge},
author = {D. Djukic and K. S. Thygesen and C. Untiedt and R. H. M. Smit and K. W. Jacobsen and J. M. van Ruitenbeek},
journal= {arXiv preprint arXiv:cond-mat/0409640},
year = {2017}
}