TY - JOUR
T1 - Lateral Displacement by Transient Mobility in Chemisorption of CO on Pt(997)
AU - Yoshinobu, J.
AU - Tsukahara, N.
AU - Yasui, F.
AU - Mukai, K.
AU - Yamashita, Y.
N1 - Funding Information:
This work was supported in part by Grants-in-Aid for Scientific Research from the MEXT of Japan, 22864006. We are grateful to the anonymous referee for many constructive suggestions to improve the paper. We also thank Drs. Brian Wood and Jeffery Linsky for many fruitful discussions. Numerical simulations in this work were partly carried out at the Yukawa Institute Computer Facility, SR16000.
PY - 2003
Y1 - 2003
N2 - We investigated adsorbed states of CO on Pt(997) at 11 K using infrared reflection absorption spectroscopy. At 11 K, thermal migration is suppressed and thus the initial chemisorption at terrace sites and step sites is controlled by the transient mobility of the adsorbing molecule. The initial occupation ratio between atop CO on the terrace and atop CO at the step is directly determined to be 3.6:1. With a simple isotropic migration model, we estimated the mean lateral displacement from the first impact point to the initial chemisorption site to be 6.8 Å. We also discuss the origin of transient mobility of CO on metal surfaces.
AB - We investigated adsorbed states of CO on Pt(997) at 11 K using infrared reflection absorption spectroscopy. At 11 K, thermal migration is suppressed and thus the initial chemisorption at terrace sites and step sites is controlled by the transient mobility of the adsorbing molecule. The initial occupation ratio between atop CO on the terrace and atop CO at the step is directly determined to be 3.6:1. With a simple isotropic migration model, we estimated the mean lateral displacement from the first impact point to the initial chemisorption site to be 6.8 Å. We also discuss the origin of transient mobility of CO on metal surfaces.
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U2 - 10.1103/PhysRevLett.90.248301
DO - 10.1103/PhysRevLett.90.248301
M3 - Article
AN - SCOPUS:85038270294
SN - 0031-9007
VL - 90
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
ER -