The bending mode vibration of CO on Ru(0001) studied with low-energy electron-diffraction

被引：17

作者：

Gierer, M ^{[1
]}

Bludau, H ^{[1
]}

Over, H ^{[1
]}

Ertl, G ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 346卷 / 1-3期

关键词：

carbon monoxide; chemisorption; low energy electron diffraction (LEED); low index single crystal surfaces; ruthenium; surface structure; morphology; roughness; and topography; vibrations of adsorbed molecules;

D O I：

10.1016/0039-6028(95)00911-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The bending mode vibration (frustrated translation) of CO adsorbed on Ru(0001) was investigated using low-energy electron-diffraction (LEED). The concepts of split positions and anisotropic Debye-Waller factors are compared, and both methods are used in order to take the enhanced motion of C and O parallel to the surface properly into account. The temperature dependence of the carbon and oxygen mean-square deviations is consistent with a bending mode of the CO molecule with excitation energy of 5+/-1 meV.

引用

页码：64 / 72

页数：9

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