化学
泛音
电子能量损失谱
原子物理学
光谱学
高分辨电子能量损失谱
电子
电子散射
散射
激发
电子光谱学
通量
共振(粒子物理)
阴极射线
分子物理学
分析化学(期刊)
谱线
物理
光学
离子
有机化学
量子力学
色谱法
天文
作者
Valérie Coustet,Jacques Jupille
出处
期刊:Surface Science
[Elsevier]
日期:1994-04-01
卷期号:307-309: 1161-1165
被引量:90
标识
DOI:10.1016/0039-6028(94)91557-1
摘要
Hydroxylated (0001) faces of α-Al2O3 bulk crystals have been examined by high-resolution electron-energy loss spectroscopy (HREELS). Surface charging being eliminated by means of a defocused electron beam, it is shown that the electron fluence can be low enough to avoid significant damages. A resonance scattering from chemisorbed OH groups is evidenced, at impact energies lower than 12 eV, by strong enhancements of the cross sections for excitation of both the fundamental (3720 cm−1) and the first overtone (7270 cm−1) of the stretching mode and by the angular distribution of the inelastically scattered electrons.
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