Collision-induced desorption of N2 on Ni(100) studied with Fourier transform infrared spectroscopy

被引：8
|
作者：
Takaoka, T [1 ]
Terahara, M [1 ]
Kusunoki, I [1 ]
机构：
[1] Tohoku Univ, Sci Measurements Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
SURFACE SCIENCE | 2000年 / 454卷 / 454期
关键词：
atom solid interactions; infrared absorption spectroscopy; low index single crystal surfaces; nickel; nitrogen molecule; vibrations of adsorbed molecules;
D O I：
10.1016/S0039-6028(00)00133-3
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：
A collision-induced desorption (CID) phenomenon was investigated using a new combined system of a molecular beam and Fourier transform infrared spectroscopy (FTIR). We have observed the desorption of N-2 from an Ni(100) surface induced by collision with hyperthermal xenon atoms. FTIR spectra showed that N-2 molecules were removed randomly by the collision. The cross-section of the CID depended on the incident energy of the xenon. For 1.23 eV this was 1.2 Angstrom(2). Ln addition, a difference between the mechanisms of CID and thermal desorption was found. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：218 / 221
页数：4
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