ADSORBATE WAVE-FUNCTION MAPPING BY (E,2E) SPECTROSCOPY

被引：12
|
作者：
VOS, M
CANNEY, SA
STORER, P
MCCARTHY, IE
WEIGOLD, E
机构：
[1] Electronic Structure of Materials Centre, Flinders University of South Australia, Adelaide, SA 5001
来源：
SURFACE SCIENCE | 1995年 / 327卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
CARBON; ELECTRON-SOLID INTERACTIONS; ETCHING MODELS OF SURFACE CHEMICAL REACTIONS; OXYGEN;
D O I：
10.1016/0039-6028(94)00824-8
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 effect of oxygen adsorption on the (e,2e) spectra of annealed carbon films has been investigated. There are two regions of extra intensity in the measured spectral momentum density. One at 31 eV below the vacuum level and a broad one near 11 eV. No dispersion is found for either of these contributions. The dependence of intensity on electron momentum is consistent with almost exclusively s character for the deepest level and a mixture of s and p character for the level closest to the Fermi level. These results are compared with the electronic structure of CO, O and graphite. The possibilities of the (e,2e) technique for the study of adsorbates are discussed.
引用
收藏
页码：387 / 397
页数：11
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