Appearance of high-coercivity in FE - ND amorphous alloys

K. Siratori; K. Nagayama; H. Ino; N. Saito; Y. Nakagawa

doi:10.1109/TMAG.1987.1065657

Appearance of high-coercivity in FE - ND amorphous alloys

K. Siratori, K. Nagayama, H. Ino, N. Saito, Y. Nakagawa

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Magnetic properties of melt-spun Fel_xNdx amorphous alloys are examined. Magnetically homogeneous alloys were obtained in the range of 0.15 x 0.60. 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 x 0;4. Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.

Original language	English
Pages (from-to)	2302-2304
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	23
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.1987.1065657
Publication status	Published - 1987 Sep
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.1987.1065657

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abstract = "Magnetic properties of melt-spun Fel_xNdx amorphous alloys are examined. Magnetically homogeneous alloys were obtained in the range of 0.15 x 0.60. 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 {\textquoteleft}small as 1 kOe for x = 0.2 but increases rather abruptly for larger x, up to more than 50 kOe for x 0;4. Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.",

author = "K. Siratori and K. Nagayama and H. Ino and N. Saito and Y. Nakagawa",

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T1 - Appearance of high-coercivity in FE - ND amorphous alloys

AU - Siratori, K.

AU - Nagayama, K.

AU - Ino, H.

AU - Saito, N.

AU - Nakagawa, Y.

PY - 1987/9

Y1 - 1987/9

N2 - Magnetic properties of melt-spun Fel_xNdx amorphous alloys are examined. Magnetically homogeneous alloys were obtained in the range of 0.15 x 0.60. 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 x 0;4. Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.

AB - Magnetic properties of melt-spun Fel_xNdx amorphous alloys are examined. Magnetically homogeneous alloys were obtained in the range of 0.15 x 0.60. 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 x 0;4. Large random uniaxial anisotropy of Nd is supposed to be the cause of such a high coercivity.

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Appearance of high-coercivity in FE - ND amorphous alloys

Abstract

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