Composition Dependence on Compressive Magnetostriction of Fe–Sm Binary Alloy Thin Films

Yoshitake Nishi; Yoshihito Matsumura; Atsushi Kadowaki; Shingo Masuda

doi:10.2320/matertrans.46.3063

Yoshitake Nishi, Yoshihito Matsumura, Atsushi Kadowaki, Shingo Masuda

著者情報

キーワード: samarium, iron, film, giant magnetostriction, direct current magnetron sputtering, samarium–iron

ジャーナルフリー

2005 年 46 巻 12 号 p. 3063-3066

DOI https://doi.org/10.2320/matertrans.46.3063

詳細

抄録

Influences of composition on magenetostriction of Fe–Sm alloy thin films prepared by D.C. magnetron sputtering process were investigated. Composition of formed film was ranged from 24 to 59 at%Sm. Negative, that is, compressive magnetostriction was observed of Fe–Sm thin films. The magenetostriction of thin films was varied with composition rate of Fe–Sm alloy. The giant magnetostriction (GM) over 1000 ppm at 1200 kA/m was observed from 24 to 34 at%Sm for Fe–Sm amorphous film. The limited value of GM at 1200 kA/m was 1280 ppm of Fe–29.3 at%Sm alloy film.

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