Abstract
The lifetime of the first excited level of the symmetric C-H stretching mode of CH3S chemisorbed on a Ag(111) surface was measured by picosecond vibrational spectroscopy. A biexponential decay (3- and 63-ps lifetimes at 300 K) was observed, with a substantial temperature dependence of the slow component. Both decay processes are assigned to intramolecular vibrational relaxation. The decay rates are 2 orders of magnitude too fast to be explained by electron-hole-pair damping by the metal substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 2086-2089 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 64 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 1990 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Harris, A., Rothberg, L., Dubois, L. H., Levinos, N. J., & Dhar, L. (1990). Molecular vibrational energy relaxation at a metal surface: Methyl thiolate on Ag(111). Physical Review Letters, 64(17), 2086-2089. https://doi.org/10.1103/PhysRevLett.64.2086