Effect of Magnetic Field Annealing on Magnetic Properties of Iron–Gallium Alloys

The concentration dependence of magnetic properties of iron alloys with 3–25% of gallium is studied. It was shown that the saturation induction monotonically decreases with increasing gallium content, while the coercivity exhibits a step increase with a step from 85 to 135 A/m between 12 and 15 at %...

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Published inPhysics of the solid state Vol. 62; no. 10; pp. 1746 - 1754
Main Authors Lukshina, V. A., Shishkin, D. A., Kuznetsov, A. R., Ershov, N. V., Gornostyrev, Yu. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2020
Springer
Springer Nature B.V
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Summary:The concentration dependence of magnetic properties of iron alloys with 3–25% of gallium is studied. It was shown that the saturation induction monotonically decreases with increasing gallium content, while the coercivity exhibits a step increase with a step from 85 to 135 A/m between 12 and 15 at % Ga. The effect of magnetic field annealing (MFA) on the behavior of the residual induction and coercive force in alloy samples containing from 3 to 18 at % Ga is studied. As a result of MFA, magnetic anisotropy is induced in the alloy: magnetic hysteresis loops become narrower, the residual induction increases, and the coercivity decreases. The MFA efficiency reaches a maximum at a Ga content of 15–18 at %. The features of the structure state of iron–gallium alloys and their role in the formation of magnetic properties during annealing in a dc magnetic field are discussed.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783420100182