Perpendicular Anisotropy in Bi-Doped Amorphous Ferrimagnetic GdFe, GdCo and GdFeCo Thin Films

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概要

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• We have studied the effects of Bi-doping on the perpendicular anisotropy in sputtered Gd(Fe<1-x>Co_x) amorphous films. Over the range of 0≦3x≦l, the perpendicular anisotropy increases remarkably with the addition of Bi-atoms together with the shift of saturation magnetization toward the transition metal TM dominant magnetically. GdFe films dopedwith Bi have a perpendicular anisotropy even when prepared under a bias-potential application. The increase ofanisotropy by Bi-doping is interpreted neither by the term of a stress nor by a simple shape anisotropy. It is consideredthat the segregation of non-ferromagnetic GdBi_x, takes place. The alignment of the TM dominant phase in the region ofGdBi, would be the origin of a large perpendicular anisotropy.

• 社団法人応用物理学会の論文
• 1985-05-20

著者

• Onishi Koji

  Department Of Chemistry Graduate School Of Science Osaka University

• Onishi Koji

  Department Of Control Engineering Faculty Of Engineering Science Osaka University

• Inokuchi Seiji

  Department Of Control Engineering Faculty Of Engineering Science Osaka University

• Sakurai Yoshifumi

  Department Of Control Engineering Faculty Of Engineering Science Osaka University

• SAIKI Koji

  Department of Control Engineering, Faculty of Engineering Science,Osaka University

• Saiki Koji

  Department Of Control Engineering Faculty Of Engineering Science Osaka University

• Sakurai Yoshifumi

  Department Of 2nd Surg. Niigata City Hospital

• SAKURAI Yoshifumi

  Department of Control Engineering, Faculty of Engineering Science,Osaka University

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