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.
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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 -