Magnetic properties of high-pressure synthesized Sr0,8Eu0,2Co1−xZnxO3−d (x = 0; 0,05) cobaltites
https://doi.org/10.29235/1561-8323-2025-69-3-192-197
Abstract
The present study investigates the impact of high-pressure synthesis on the magnetic properties of 314-related Sr0.8Eu0.2Co1–xZnxO3–d (x = 0; 0.05) cobaltites. The observed magnetic behavior is driven by an increase in oxygen content, leading to the formation of a significant number of Co4+ ions. This results in enhanced ferromagnetic interactions through Co4+–O–Co3+ exchange and/or the emergence of superparamagnetic clusters below TC, attributed to electron transfer between IS Co3+ and LS Co4+. These findings highlight the role of oxygen stoichiometry in tuning the magnetic properties of perovskite-related cobaltites.
Supporting agencies: Работа выполнена при финансовой поддержке БРФФИ (проект Ф23М-017 и проект Ф23-108).
About the Authors
R. A. Lanovsky
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
Lanovsky Roman A. – Ph. D. (Physics and Mathematics),
Senior 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 S. – 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 V. – Ph. D. (Physics and Mathematics),
Senior Researcher
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 V. – Ph. D. (Physics and Mathematics), Leading 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 N. – Ph. D. (Physics and Mathematics), Senior Researcher
19, P. Brovka Str., 220072, Minsk
А. V. Nikitin
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
Nikitin Aleksandr V. – Junior Researcher
19, P. Brovka Str., 220072, Minsk
O V. Ignatenko
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
Ignatenko Oleg Vladimirovich – Ph. D. (Physics and
Mathematics), Head of the Laboratory
19, P. Brovka Str., 220072, Minsk
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