DocumentCode
1031114
Title
Appearance of high-coercivity in Fe-Nd amorphous alloys
Author
Siratori, K. ; Nagayama, K. ; Ino, H. ; Saito, Nobuo ; Nakagawa, Y.
Author_Institution
Osaka University, Osaka, Japan
Volume
23
Issue
5
fYear
1987
fDate
9/1/1987 12:00:00 AM
Firstpage
2302
Lastpage
2304
Abstract
Magnetic properties of melt-spun Fe1-x Ndx amorphous alloys are examined. Magnetically homogeneous alloys were obtained in the range of 
. The Curie point is lowered by decrease of x down to room temperature. The internal field at 57Fe nuclei is almost constant, ≃ 300 kOe, at 77 K, suggesting that the Fe moment is nearly constant in this range. The coercive field at 4.2 K is as small as ≃ 1 kOe for x = 0.2 but increases rather abruptly for larger x, up to more than 50 kOe for 
. Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.
. The Curie point is lowered by decrease of x down to room temperature. The internal field at 57Fe nuclei is almost constant, ≃ 300 kOe, at 77 K, suggesting that the Fe moment is nearly constant in this range. The coercive field at 4.2 K is as small as ≃ 1 kOe for x = 0.2 but increases rather abruptly for larger x, up to more than 50 kOe for . Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.Keywords
Amorphous magnetic materials/devices; Coercive forces; Permanent magnets; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Coercive force; Iron alloys; Magnetic anisotropy; Magnetic properties; Neodymium; Perpendicular magnetic anisotropy; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1987.1065657
Filename
1065657
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