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Magnetocrystalline anisotropy and magnetostriction of FeRuGaSi single crystals: SOFMAX

T. Okamoto, Kazuhiko Hayashi, M. Hayakawa, K. Asō

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Abstract

The magnetocrystalline anisotropy constant, K1 and the magnetostriction constants, λ100 and λ111 for recently found soft magnetic FeGaSi and FeRuGaSi alloys were determined in the composition region, 0–8 at. % Ru, 5–15 at. % Ga, 10–22 at. % Si, and bal. Fe. The Ru 4–8 at. %-added FeRuGaSi alloys have the intersectional points, where λ100, λ111, and K1 simultaneously become zero, at the compositions around Fe67Ru4Ga11Si18 and Fe65Ru8Ga8Si19 (at. %), whereas in the FeGaSi alloy the K1=0 line and the two zero magnetostrictive lines are apart from one another.

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What this paper is about

The magnetocrystalline anisotropy constant, K1 and the magnetostriction constants, λ100 and λ111 for recently found soft magnetic FeGaSi and FeRuGaSi alloys were determined in the composition region, 0–8 at. % Ru, 5–15 at. % Ga, 10–22 at. % Si, and bal. Fe. The Ru 4–8 at. %-added FeRuGaSi alloys have the intersectional points, where λ100, λ111, and K1 simultaneously become zero, at the compositions around Fe67Ru4Ga11Si18 and Fe65Ru8Ga8Si19 (at. %), whereas in the FeGaSi alloy the K1=0 line and the two zero magnetostrictive lines are apart from one another.

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Available abstract

The magnetocrystalline anisotropy constant, K1 and the magnetostriction constants, λ100 and λ111 for recently found soft magnetic FeGaSi and FeRuGaSi alloys were determined in the composition region, 0–8 at. % Ru, 5–15 at. % Ga, 10–22 at. % Si, and bal. Fe. The Ru 4–8 at. %-added FeRuGaSi alloys have the intersectional points, where λ100, λ111, and K1 simultaneously become zero, at the compositions around Fe67Ru4Ga11Si18 and Fe65Ru8Ga8Si19 (at. %), whereas in the FeGaSi alloy the K1=0 line and the two zero magnetostrictive lines are apart from one another.

Key concepts: Magnetostriction, Magnetocrystalline anisotropy, Condensed matter physics, Anisotropy, Materials science, Magnetic anisotropy, Line (geometry), Alloy

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