TY  - JOUR
AU  - Ueba, H.
AU  - Persson, B. N. J.
TI  - Heating of adsorbate by vibrational-mode coupling
JO  - Physical review / B
VL  - 77
IS  - 3
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-2772
SP  - 035413
PY  - 2008
N1  - Record converted from VDB: 12.11.2012
AB  - We present a theory for the energy transfer between adsorbates and ultrafast laser heated hot electrons in the presence of the vibrational-mode coupling. This mode coupling provides another source of vibrational heating, in addition to the direct heating by hot electrons via friction coupling. The theory is general and accurate and easy to implement to analyze adsorbate motions induced by femtosecond laser heating of the adsorbate and/or metal systems. The heat transfer equation for the coupled harmonic oscillators is applied to the recent time-resolved studies of hopping of carbon monoxide and atomic oxygen on Pt surfaces. It is found that the temperature of the frustrated translation mode responsible for hopping can become high enough, even when its direct friction coupling to the hot electrons is too weak to induce motion.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000252862900127
DO  - DOI:10.1103/PhysRevB.77.035413
UR  - https://juser.fz-juelich.de/record/2772
ER  -