Magnetic properties of Sm-Co and Sm-Co/M (M=Co, Fe) exchange-spring films

Yoshihiro Yamazaki, Kazuhide Takano, Hitoshi Takamura, Satoshi Sugimoto, Motofumi Homma, Masuo Okada

Research output: Contribution to journalArticle

Abstract

The structure and magnetic properties of Sm-Co films and Sm-Co/M (M=Co, Fe) multilayered films prepared by rf sputtering were investigated. The results show that a hard magnetic phase as Sm2Co17 and SmCo5 phase and a soft magnetic phase were formed by annealing Sm-Co and Sm-Co/M films. Sm16Co84 film annealed for 1.8 ks at 773 K had the springback ratio of [Mr′-M(H)]/[Mr-M(H)]=0.72. This film was found to behave as a exchange-spring magnet composed of a hard magnetic phase and a soft magnetic phase. Sm16Co84/Fe multilayered film was also found to be a exchange-spring magnet.

Original languageEnglish
Pages (from-to)827-832
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume44
Issue number9
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

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Magnetic properties
Magnets
Sputtering
Annealing

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Magnetic properties of Sm-Co and Sm-Co/M (M=Co, Fe) exchange-spring films. / Yamazaki, Yoshihiro; Takano, Kazuhide; Takamura, Hitoshi; Sugimoto, Satoshi; Homma, Motofumi; Okada, Masuo.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 44, No. 9, 01.01.1997, p. 827-832.

Research output: Contribution to journalArticle

Yamazaki, Yoshihiro ; Takano, Kazuhide ; Takamura, Hitoshi ; Sugimoto, Satoshi ; Homma, Motofumi ; Okada, Masuo. / Magnetic properties of Sm-Co and Sm-Co/M (M=Co, Fe) exchange-spring films. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1997 ; Vol. 44, No. 9. pp. 827-832.
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