Role of diffused Co atoms in improving effective exchange coupling in Sm-Co/Fe spring magnets

被引：65
作者：
Choi, Y.
Jiang, J. S.
Ding, Y.
Rosenberg, R. A.
Pearson, J. E.
Bader, S. D.
Zambano, A.
Murakami, M.
Takeuchi, I.
Wang, Z. L.
Liu, J. P.
机构：
[1] Argonne Natl Lab, Mat Sci Div, Argonne, IL 60439 USA
[2] Univ Texas, Dept Phys, Arlington, TX 76019 USA
[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[4] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[5] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.75.104432
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In Sm-Co/Fe exchange-spring magnet films, the magnetization reversal processes of constituent elements and layers were studied with an emphasis on the role of diffused Co atoms. Enhanced coupling effectiveness was observed in a film with a graded interface where significant Co diffusion into the Fe layer was observed by means of electron microscopy. Comprehensive insight into the magnetization reversal processes was obtained by combining micromagnetic simulation with element- and depth-resolved x-ray resonant magnetic scattering. The approach unambiguously identifies distinctive composition profiles across the graded interface and provides the magnetization behavior of the diffused Co.
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页数：6
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