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Stretching dependence of the vibration modes of a single-molecule Pt-H2-Pt bridge

D. Djukic·K. S. Thygesen·C. Untiedt·R. H. M. Smit·K. W. Jacobsen·J. M. van Ruitenbeek
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Abstract

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.

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D. Djukic, K. S. Thygesen, C. Untiedt, R. H. M. Smit, K. W. Jacobsen, J. M. van Ruitenbeek. 2005-03-18. Stretching dependence of the vibration modes of a single-molecule Pt-H2-Pt bridge. https://doi.org/10.1103/physrevb.71.161402

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