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19 April 2024

» arxiv » cond-mat/0409640

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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 ;
Date:	24 Sep 2004
Subject:	Mesoscopic Systems and Quantum Hall Effect \| cond-mat.mes-hall
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.
Source:	arXiv, cond-mat/0409640
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