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

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...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2024, Vol.88 (1), p.97-102
Main Authors: Yurlov, V. V., Zvezdin, K. A., Zvezdin, A. K.
Format: Article
Language:English
Subjects:
Anisotropy
Ferrimagnets
Hadrons
Heavy Ions
Nuclear Physics
Phase diagrams
Phase transitions
Physics
Physics and Astronomy
Rare earth elements
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Summary: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.
ISSN:1062-8738
1934-9432
DOI:10.1134/S1062873823705044