Local-field effects at the Ag(110) and Cu(110) surfaces studied by reflection anisotropy spectroscopy

被引：0
|
作者：
Hansen, JK [1 ]
Bremer, J [1 ]
Hunderi, O [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Phys, N-7034 Trondheim, Norway
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 1998年 / 170卷 / 02期
关键词：
D O I：
10.1002/(SICI)1521-396X(199812)170:2<271::AID-PSSA271>3.3.CO;2-Q
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have calculated the screened surface local-field effect for the f.c.c. (110) case, and applied the results to Cu and Ag. Theoretical reflection anisotropy spectra are compared with experimental ones for both clean and oxygen covered surfaces between 1.8 and 55 eV. In the Cu(110) case, there is a satisfactory agreement. For the clean Ag(110) surface, the surface seems to exist in two different states resulting in two qualitatively different RAS spectra. Only one of them can be modelled reasonably well by surface local-field effect theory. In addition, we investigate how the variation in model parameters change the form of the spectra of Ag(110).
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收藏
页码：271 / 277
页数：7
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