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 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Molecular vibrational energy relaxation at a metal surface : Methyl thiolate on Ag(111). / Harris, Alex; Rothberg, L.; Dubois, L. H.; Levinos, N. J.; Dhar, L.
In: Physical Review Letters, Vol. 64, No. 17, 1990, p. 2086-2089.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular vibrational energy relaxation at a metal surface
T2 - Methyl thiolate on Ag(111)
AU - Harris, Alex
AU - Rothberg, L.
AU - Dubois, L. H.
AU - Levinos, N. J.
AU - Dhar, L.
PY - 1990
Y1 - 1990
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=3743149233&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3743149233&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.64.2086
DO - 10.1103/PhysRevLett.64.2086
M3 - Article
AN - SCOPUS:3743149233
VL - 64
SP - 2086
EP - 2089
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 17
ER -