TY - JOUR
T1 - Stretching dependence of the vibration modes of a single-molecule Pt-H-2-Pt bridge
AU - Djukic, D.
AU - Thygesen, Kristian Sommer
AU - Untiedt, C.
AU - Smit, R.H.M.
AU - Jacobsen, Karsten Wedel
AU - Ruitenbeek, J.M. van
N1 - Copyright 2005 American Physical Society
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevB.71.161402
DO - 10.1103/PhysRevB.71.161402
M3 - Journal article
VL - 71
SP - 161402
JO - Physical Review B (Condensed Matter and Materials Physics)
JF - Physical Review B (Condensed Matter and Materials Physics)
SN - 1098-0121
IS - 16
ER -