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Analysis of Magnetization Curves and Magnetocrystalline Anisotropy of Uniaxial Ferromagnets

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Metal Science and Heat Treatment Aims and scope

Theoretical analysis of the processes of magnetization of uniaxial ferromagnetic materials is performed within the Neel theory of magnetic phases. Relations are obtained for the constants of magnetic crystal anisotropy K 1, K 2, the form factor N, and the saturation magnetization I s , at which the magnetization curves exhibit jumps (FOMP). Formulas for computing the saturation fields H s and the jump fields H FOMP are derived for crystals with different types of magnetocrystalline anisotropy MCA. It is shown that the Sucksmith–Thompson method is applicable for computing the first too MCAconstants of uniaxial ferromagnets with any type of MCA. Constants K 1 and K 2 are computed with allowance for the form factor of the specimen. Model magnetization curves are plotted for uniaxial ferromagnets with different types of MCA along and perpendicularly to crystallographic axis c. The analytical results match the model curves well.

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Authors and Affiliations

  1. Tver State University, Tver, Russia

    M. B. Lyakhova & O. V. Zhdanova

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  1. M. B. Lyakhova
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  2. O. V. Zhdanova
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Correspondence to M. B. Lyakhova.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 10 – 16, October, 2016.

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Lyakhova, M.B., Zhdanova, O.V. Analysis of Magnetization Curves and Magnetocrystalline Anisotropy of Uniaxial Ferromagnets. Met Sci Heat Treat 58, 587–593 (2017). https://doi.org/10.1007/s11041-017-0060-x

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  • DOI: https://doi.org/10.1007/s11041-017-0060-x

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