Vibrational Damping of Adsorbed Molecules: Methoxide on Cu(100)
- 22 February 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 48 (8), 549-552
- https://doi.org/10.1103/physrevlett.48.549
Abstract
The lifetimes of the C-H and C-D stretch vibrational modes of methoxide adsorbed on Cu(100) have been measured by infrared spectroscopy. It is shown that the damping of these vibrational states is caused by excitation of electron-hole pairs in a region very close to the vibrating molecule. It is argued that the electron-hole pairs are excited because a resonance around the Fermi level fills and empties during the vibration.Keywords
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