Stretching dependence of the vibration modes of a single-molecule Pt-H-2-Pt bridge

Publication: Research - peer-reviewJournal article – Annual report year: 2005

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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 isotope substitution is obtained. The stretching dependence for each of the modes allows uniquely classifying them as longitudinal or transversal modes. 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.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume71
Issue number16
Pages (from-to)161402
ISSN0163-1829
DOIs
StatePublished - 2005

Bibliographical note

Copyright 2005 American Physical Society

CitationsWeb of Science® Times Cited: 119
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