Cobalt-doped FeRh system: Studies of compositional homogeneity and property stability

Komlev, A.S.; Vaschenkova, A.R.; Yusupov, D.M.; Rusakov, V.S.; Amirov, A.A.; Chirkova, A.M.; Aliev, A.M.; Ilina, T.S.; Kiselev, D.A.; Baranov, N.V.; Perov, N.S.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 июля 2025 г.

Авторы: Komlev Aleksei S., Vaschenkova Anna R., Yusupov Dibir M., Rusakov Vyacheslav S., Amirov Abdulkarim A., Chirkova Alisa M., Aliev Akhmed M., Ilina Tatiana S., Kiselev Dmitry A., Baranov Nikolai V., Perov Nikolai S.
Журнал: Journal of Alloys and Compounds
Том: 1036
Год издания: 2025
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Номер статьи: 181971
DOI: 10.1016/j.jallcom.2025.181971
Аннотация: FeRh-based alloys are unique objects, the study of which allows us to identify new features of first-order magnetic phase transitions. Doping of an alloy often leads to significant changes in its magnetic properties. This paper examines the structural, magnetic, transport and caloric properties of iron-rhodium alloys with different cobalt doping with varying cobalt content (0–1.8 at%). Doping the alloy with less than 2 at% cobalt resulted in a decrease in the phase transition temperature by 200 K. Based on the results obtained, a relationship was established between the magnetic properties and the heterogeneity of the elemental composition of the samples. It was also demonstrated that significant changes in the parameters of the magnetic phase transition of the alloy upon alloying are largely determined by the electronic properties. Considering the sensitivity of the alloy properties to the cobalt content, we develop a novel methodology for quantifying local compositional variations using temperature-dependent measurements, demonstrating its superior sensitivity compared to conventional techniques. The strong correlation between magnetocaloric response and cobalt concentration highlights the importance of precise composition control for applications.
Добавил в систему: Комлев Алексей Степанович

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