-Interface effects on the magnetic moment of Co and Cu in CoCu granular alloys

被引：23
|
作者：
Prieto, AG
Fdez-Gubieda, ML
Chaboy, J
Laguna-Marco, MA
Muro, T
Nakamura, T
机构：
[1] Univ Basque Country, Dept Elect & Elect, E-48080 Bilbao, Spain
[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain
[3] Univ Cantabria, CITIMAC, E-39005 Santander, Spain
[4] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795148, Japan
来源：
PHYSICAL REVIEW B | 2005年 / 72卷 / 21期
关键词：
D O I：
10.1103/PhysRevB.72.212403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on x-ray magnetic circular dichroism experiments performed on Co5Cu95 annealed granular alloys with giant magnetoresistance. Results on the Co-L-2,L-3 edge evidence a direct correlation between the Co orbital and spin magnetic moment and the Co clusters interfacial roughness. On the other hand, we have found dichroism on the Cu-L-2,L-3 edge, revealing an induced magnetic polarization of the Cu interfacial atoms. The magnetic moment of the Cu atoms is mainly of spin character and is ferromagnetically coupled with the Co magnetic moment.
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页数：4
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