Abstract
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.
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Funding
This study was performed within the State contract on subjects “Magnet” no. АААА-А18-118020290129-5, “Structure” no. АААА-А18-118020190116-6, and the project no. 18-10-2-5 of the program of the Ural Branch of Russian Academy of Sciences; the study was also supported by the Russian Foundation for Basic Research, project no. 18-02-00391.
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Lukshina, V.A., Shishkin, D.A., Kuznetsov, A.R. et al. Effect of Magnetic Field Annealing on Magnetic Properties of Iron–Gallium Alloys. Phys. Solid State 62, 1746–1754 (2020). https://doi.org/10.1134/S1063783420100182
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DOI: https://doi.org/10.1134/S1063783420100182