TY  - JOUR
AU  - Hayashi, M.
AU  - Ootsuka, Y.
AU  - Paulsson, M.
AU  - Persson, B. N. J.
AU  - Ueba, H.
TI  - Lateral hopping of CO molecules on Pt(111) surface by femtosecond laser pulses
JO  - Physical review / B
VL  - 80
IS  - 24
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-7382
SP  - 245409
PY  - 2009
N1  - We gratefully acknowledge J. G,dde and U. Hofer for showing us their experimental data before publication and useful discussions. We also thank M. Bonn and Ch. Frischkorm for discussions and a critical reading of the manuscript. This work was supported by the Grant-in-Aid for Scientific Research B (Grant No. 18340085) from the Japan Society for the Promotion of Science.
AB  - Theory of heat transfer between adsorbate vibrational degrees of freedom and ultrafast laser heated hot electrons including vibrational intermode coupling is applied to calculate two-pulse correlation, laser fluence dependence and time dependence of lateral hopping of CO molecules from a step to terrace site on a stepped Pt (111) surface. The intermode coupling is a key ingredient to describe vibrational heating of the frustrated translation mode responsible for the CO hopping. The calculated results are in good agreement with the experimental results, especially if we scale down the experimentally determined absorbed fluence. It is found that CO hopping is induced by indirect heating of the FT mode by the FR mode with a strong frictional coupling to hot electrons.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000273229200113
DO  - DOI:10.1103/PhysRevB.80.245409
UR  - https://juser.fz-juelich.de/record/7382
ER  -