DETECTION OF HYDROGEN-INDUCED EFFECTS IN CE2FE14BHX AND CE2FE17HX PERMANENT-MAGNETS BY LIII ABSORPTION-EDGE OF CERIUM

被引：31
作者：
CHABOY, J
GARCIA, J
MARCELLI, A
ISNARD, O
MIRAGLIA, S
FRUCHART, D
机构：
[1] CNRS,CRISTALLOG LAB,F-38000 GRENOBLE,FRANCE
[2] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷
关键词：
D O I：
10.1016/0304-8853(92)90537-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have applied X-ray absorption spectroscopy to the study of RE2Fe14BHx (RE = La, Ce) and Ce2Fe17Hx systems at variable hydrogen concentration. The L(III) XANES spectra at the selected rare earth site have been measured to investigate the influence of hydrogen absorption on the electronic properties and to study the local structure around the rare earth atoms. The magnetic properties of the hydrides are analyzed in the framework of 4f electron localization. Valence change of cerium after the introduction of the hydrogen in the metal host is also discussed.
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页码：1171 / 1172
页数：2
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