Temperature-Induced Mixed Magnetic States in FeRh@FeO Composite Nanoparticles | Sciact - CRIS-system of Boreskov Institute of Catalysis

Temperature-Induced Mixed Magnetic States in FeRh@FeO Composite Nanoparticles Full article

Journal

Materials Chemistry and Physics
ISSN: 0254-0584 , E-ISSN: 1879-3312

Output data

Year: 2024, Volume: 314, Article number : 128855, Pages count : 9 DOI: 10.1016/j.matchemphys.2023.128855

Tags

Magnetic phase transition; FeRh nanoparticles; Mössbauer studies; Superparamagnetic states; Composite nanoparticles

Authors

Komlev Aleksei S. ¹ , Koroleva Elizaveta A. ² , Shabalkin Ilia D. ² , Rusakov Vyacheslav S. ¹ , Komleva Diana I. ¹ , Kiseleva Tatiana Yu ¹ , Degtyarenko Alena Yu ³ , Zverev Vladimir I. ¹ , Gimaev Radel ¹ , Gerasimov Evgeny Y. ⁴ , Perov Nikolai S. ¹ , Krivoshapkin Pavel V. ²

Affiliations

1	Faculty of Physics, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
2	SCAMT Institute, ITMO University, 191002, Saint-Petersburg, Russia
3	Ginzburg Center for High Temperature Superconductivity and Quantum Materials, P.N. Lebedev Physical Institute of the RAS, 119991, Moscow, Russia
4	Boreskov Institute of Catalysis SB RAS, 5 Lavrentyev Ave., Novosibirsk, 630090, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	Приоритет 2030
2	Ministry of Science and Higher Education of the Russian Federation	075-15-2021-1353 (222071900004-7)

Reducing the size of a material with a first-order magnetic phase transition to the nanoscale results in a significant change in its physical properties. An example of this behaviour is the FeRh alloy. According to magnetometry results, the nanoparticles of this alloy do not show a transition from the antiferromagnetic to the ferromagnetic state near room temperature. In this work we have measured the magnetic properties and the Mössbauer effect for FeRh@FeO composite nanoparticles at different temperatures. An analysis of the results allows us to conclude that superparamagnetic relaxations dominate the formation of the magnetic structure of the nanoparticles. For particle sizes near 10 nm, the antiferromagnetic state is possible near helium temperatures. Further heating contributes to the formation of superparamagnetic behaviour.

Komlev A.S. , Koroleva E.A. , Shabalkin I.D. , Rusakov V.S. , Komleva D.I. , Kiseleva T.Y. , Degtyarenko A.Y. , Zverev V.I. , Gimaev R. , Gerasimov E.Y. , Perov N.S. , Krivoshapkin P.V.
Temperature-Induced Mixed Magnetic States in FeRh@FeO Composite Nanoparticles
Materials Chemistry and Physics. 2024. V.314. 128855 :1-9. DOI: 10.1016/j.matchemphys.2023.128855 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Oct 3, 2023
Accepted:	Dec 22, 2023
Published online:	Dec 29, 2023
Published print:	Feb 15, 2024

Web of science:	WOS:001156809700001
Scopus:	2-s2.0-85181832892
Elibrary:	65992625
Chemical Abstracts:	2024:37896
OpenAlex:	W4390398956

DB	Citing
OpenAlex	1
Scopus	1
Web of science	1