Resonant photoemission study of the 4f spectral function of cerium in Ce/Fe(100) interfaces

被引：13
|
作者：
Witkowski, N
Bertran, F
Gourieux, T
Kierren, B
Malterre, D
Panaccione, G
机构：
[1] UNIV PARIS 11,UTILISAT RAYONNEMENT ELECTROMAGNET LAB,F-91405 ORSAY,FRANCE
[2] UNIV NEUCHATEL,INST PHYS,CH-2000 NEUCHATEL,SWITZERLAND
来源：
PHYSICAL REVIEW B | 1997年 / 56卷 / 19期
关键词：
D O I：
10.1103/PhysRevB.56.12054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we present a resonant photoemission study of the cerium 4f spectral function in Ce/Fe(100) interfaces. By covering cerium ultrathin films with lanthanum, we completely suppress the surface contribution of the spectra. Then we show that the cerium atoms at the interface are in an intermediate valent state, whereas the f(1) configuration is stabilized in the top layer. This method allows us to obtain the genuine 4f spectral function of the interface, and could be extended to a study of Ce-based compounds.
引用
收藏
页码：12054 / 12057
页数：4
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