Magnetic and structural properties of quaternary (Fe-Co-Ni)50Pt50 alloy thin films

被引：19
|
作者：
Suzuki, T [1 ]
Kanazawa, H
Sakuma, A
机构：
[1] Toyota Technol Inst, Informat Storage Mat Lab, Nagoya, Aichi 4688511, Japan
[2] Hitachi Met Ltd, Magnet & Elect Mat Res Lab, Kumagaya 3600843, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期
关键词：
(Fe-Co-Ni-Cr)(50)Pt-50 ordered alloys; magnetic anisotropy; order parameter; valence electron number;
D O I：
10.1109/TMAG.2002.803103
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The intrinsic perpendicular magnetic anisotropy constant K. for (Fe-Co-Ni)(50)Pt-50 quaternary alloy and (Fe-Cr)(50)Pt-50 alloy thin films is discussed as a function of structure and composition. Both M-s, and the estimated K-u values obtained by the extrapolation to order parameter S = I using the dependence of K-u on S become maximum at the valence electron number eta(elect) = 8, being independent of alloy system. The magnetic anisotropy is determined to the first approximation by the Fermi energy, which changes with the number of electrons, but not by the band structure itself.
引用
收藏
页码：2794 / 2795
页数：2
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