Surface enhanced infrared absorption of CO on smooth iron ultrathin films

被引：11
|
作者：
Priebe, A [1 ]
Fahsold, G [1 ]
Pucci, A [1 ]
机构：
[1] Univ Heidelberg, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany
来源：
SURFACE SCIENCE | 2001年 / 482卷
关键词：
infrared absorption spectroscopy; vibrations of adsorbed molecules; surface electronic phenomena (work function; surface potential; surface states; etc.); iron; carbon monoxide; metallic films;
D O I：
10.1016/S0039-6028(01)00780-4
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：
We have developed preparation procedures which suppress island growth of Fe on MgO(0 0 1) in ultrahigh vacuum. The resulting smooth Fe(0 0 1) films of few nanometer thickness have been exposed to CO. The infrared broadband transmission at normal incidence strongly changes with CO exposure. At about 2050 cm(-1), i.e. in the stretching region of CO on on-top sites, enhanced infrared absorption with a Fano-like line shape is observed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：90 / 95
页数：6
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