Femtosecond surface vibrational spectroscopy of CO adsorbed on Ru(001) during desorption

被引：148

作者：

Bonn, M

Hess, C

Funk, S

Miners, JH

Persson, BNJ

Wolf, M

Ertl, G

机构：

[1] Forschungszentrum Julich, IFF, D-52425 Julich, Germany

[2] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.84.4653

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using time-resolved sum-frequency generation spectroscopy, the C-O stretch vibration of carbon monoxide adsorbed on a single-crystal Ru(001) surface is investigated during femtosecond near-IR laser excitation leading to desorption. A large transient redshift, a broadening of the resonance, and a strong decrease in intensity are observed. These originate from coupling of the C-O stretch to low-frequency modes, especially the frustrated rotation, that are highly excited in the desorption process.

引用

页码：4653 / 4656

页数：4

共 26 条

[1]

Anisimov S. I., 1975, SOV PHYS JETP, V39, P375, DOI DOI 10.1016/J.JMATPROTEC.2009.05.031

[2] Time-resolved SFG study of the vibrational excitation of adsorbed CO on Ni(111) and NiO(111) surfaces under the irradiation of UV and visible photons [J].