REASON FOR A METAMAGNETIC TRANSITION IN EuMn0.5Co0.5O3
https://doi.org/10.29235/1561-8323-2018-62-3-268-273
Abstract
The magnetic properties of perovskite EuMn0.5Co0.5O3, obtained under different synthesis conditions, have been studied. It is shown that the sample obtained at 1500 °C exhibits a metamagnetic transition, whereas in the sample obtained at 1200 °C, the field dependence of magnetization as in a ferromagnet was observed. The both samples have TC = 123 K and approximately equal to magnetization in large magnetic fields. Metamagnetism is associated with a transition from a noncollinear to a collinear magnetic phase, whereas the presence of clusters with the ordering of Co2+ and Mn4+ ions leads to ferromagnetism. The noncollinear phase is formed due to the competition of positive Co2+–Mn4+ and negative Mn4+–Mn4+, Co2+–Co2+ interactions and due to large magnetic anisotropy.
About the Authors
I. O. Troyanchuk
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus.
Belarus
Belarus
Troyanchuk Igor Olegovich – Corresponding Member, D. Sc. (Physics and Mathematics), Professor, Head of the Laboratory.
19, P. Brovka Str., 220072, Minsk.
M. V. Bushinsky
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus.
Belarus
Belarus
Bushinsky Maxim Vladislavovich – Ph. D. (Physics and Mathematics), Senior researcher.
19, P. Brovka Str., 220072, Minsk.
N. V. Tereshko
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus.
Belarus
Belarus
Tereshko Nina Viktorovna – Ph. D. (Physics and Mathematics), Researcher.
19, P. Brovka Str., 220072, Minsk.
A. N. Chobot
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus.
Belarus
Belarus
Chobot Aleksandra Nikolaevna – Ph. D. (Physics and Mathematics), Researcher.
19, P. Brovka Str., 220072, Minsk.
O. S. Mantytskaya
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus.
Belarus
Belarus
Mantytskaya Olga Stanislavovna – Ph. D. (Physics and Mathematics), Researcher.
19, P. Brovka Str., 220072, Minsk.
G. M. Chobot
Belarusian State Agrarian Technical University.
Belarus
Belarus
Chobot Gennadii Mihailovich – Ph. D. (Physics and Mathematics), Assistant Professor.
99, Nezavisimosti Ave., 220023, Minsk.
V. M. Dobryansky
Belarusian State Agrarian Technical University.
Belarus
Belarus
Dobryansky Valerij Mihailovich – D. Sc. (Engineering), Professor.
99, Nezavisimosti Ave., 220023, Minsk.
S. N. Pastushonok
Military Academy of the Republic of Belarus.
Belarus
Belarus
Pastushonok Sofija Nikolaevna – Ph. D. (Physics and Mathematics), Assistant Professor.
220, Nezavisimosti Ave., 220057, Minsk.
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