2005 Volume 46 Issue 12 Pages 3063-3066
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.