FEATURES OF THE FERROMAGNETIC STATE IN A MAGNET WITH ORBITAL ORDERING
- Authors: Kokorina E.E1, Medvedev M.V.1
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Affiliations:
- Institute of Electrophysics, Ural Branch of Russian Academy of Sciences
- Issue: Vol 126, No 7 (2025)
- Pages: 747-757
- Section: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
- URL: https://journals.rcsi.science/0015-3230/article/view/291984
- DOI: https://doi.org/10.31857/S0015323025070019
- ID: 291984
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Abstract
The features of temperature and field behavior of the ferromagnetic state in the two-spin Kugel–Chomsky model describing the relationship between the ferromagnetic spin and antiferromagnetic pseudospin orbital orderings are investigated. The case is analyzed when the critical temperature of the antiferromagnetic orbital ordering Tl is higher than the critical Curie temperature of the spin ferromagnetic order Ts. It is
shown that in this case the existence of an exchange coupling of the ferromagnetic spin subsystem with the orbitally ordered subsystem leads at finite temperatures to a decrease in both the spontaneous and induced magnetization of the ferromagnetic state compared to similar characteristics of the ferromagnetic state in a media without orbital ordering.
Keywords
About the authors
Elena E Kokorina
Institute of Electrophysics, Ural Branch of Russian Academy of Sciences
Author for correspondence.
Email: kokorina@iep.uran.ru
Russian Federation, Ekaterinburg, 620016 Russia
Michael Vladimirovich Medvedev
Institute of Electrophysics, Ural Branch of Russian Academy of Sciences
Email: medvedev@iep.uran.ru
Russian Federation, Ekaterinburg, 620016 Russia
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