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Phase Diagrams of Rare-Earth Ferrimagnets with Surface Anisotropy near Their Points of Compensation

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A theoretical model is proposed for calculating the H‒T phase diagrams of a rare-earth ferrimagnet. The model considers the effects of each magnetic sublattice and the induced surface anisotropy. The magnetic phase diagrams are calculated numerically. Surface anisotropy blurs the lines of the second-order phase transition between the collinear and angular phases, the displacement of the tricritical point, and the possible formation of new phase transition lines.

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Funding

This work was supported by the Russian Science Foundation, project no. 22-12-00367.

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Authors and Affiliations

  1. Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow oblast, Russia

    V. V. Yurlov, K. A. Zvezdin & A. K. Zvezdin

  2. OOO New Spintronic Technologies, 121205, Moscow, Russia

    V. V. Yurlov, K. A. Zvezdin & A. K. Zvezdin

  3. Prokhorov General Physics Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    K. A. Zvezdin & A. K. Zvezdin

Authors
  1. V. V. Yurlov
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  2. K. A. Zvezdin
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  3. A. K. Zvezdin
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Correspondence to V. V. Yurlov.

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The authors of this work declare that they have no conflicts of interest.

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Translated by E. Bondareva

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Yurlov, V.V., Zvezdin, K.A. & Zvezdin, A.K. Phase Diagrams of Rare-Earth Ferrimagnets with Surface Anisotropy near Their Points of Compensation. Bull. Russ. Acad. Sci. Phys. 88, 97–102 (2024). https://doi.org/10.1134/S1062873823705044

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  • DOI: https://doi.org/10.1134/S1062873823705044

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