An Ultra-High-Entropy Rare Earth Orthoferrite (UHE REO): Solution Combustion Synthesis, Structural Features and Ferrimagnetic Behavior | Sciact - CRIS-система Института катализа

An Ultra-High-Entropy Rare Earth Orthoferrite (UHE REO): Solution Combustion Synthesis, Structural Features and Ferrimagnetic Behavior Научная публикация

Журнал

Dalton Transactions
ISSN: 1477-9226 , E-ISSN: 1477-9234

Вых. Данные

Год: 2023, Том: 52, Номер: 15, Страницы: 4779-4786 Страниц : 8 DOI: 10.1039/d2dt04103k

Ключевые слова

Combustion synthesis; Earth (planet); Iron compounds; Magnetocaloric effects; Perovskite; Rare earths

Авторы

Bui Long M. ¹ , Cam Son T. ^2,3 , Buryanenko Ivan V. ⁴ , Semenov Valentin G. ⁵ , Nazarov Denis V. ^4,5 , Kazin Pavel E. ⁶ , Nevedomskiy Vladimir N. ⁷ , Gerasimov Evgeny Y. ⁸ , Popkov Vadim I. ⁷

Организации

1	Department of Physical Chemistry, Saint-Petersburg State Institute of Technology (Technical University), St. Petersburg 190013, Russia ssia
2	Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh 700000, Viet Nam
3	Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Viet Nam
4	Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia
5	Saint Petersburg State University, St. Petersburg 199034, Russia
6	Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
7	Hydrogen Energy Laboratory, Ioffe Institute, St. Petersburg 194021, Russia
8	Federal Research Center, Boreskov Institute of Catalysis SB RAS, Lavrentieva Ave. 5, 630090 Novosibirsk, Russia

A novel ultra-high-entropy rare earth orthoferrite (UHE REO) of Sc1/16Y1/16La1/16Ce1/16Pr1/16Nd1/16Sm1/16Eu1/16Gd1/16Tb1/16Dy1/16Ho1/16Er1/16Tm1/16Yb1/16Lu1/16FeO3 nominal composition was successfully synthesized for the first time through a simple and efficient solution combustion approach. PXRD, Raman, and 57Fe Mössbauer spectroscopy confirmed the high chemical and phase purity of the synthesized UHE REO (hereafter denoted as ΣREFeO3), which belonged to the Pnma space group, typical of the perovskite-like rare earth orthoferrites. Despite the fact that the main X-ray reflections, vibration modes, and spectral Mössbauer components unambiguously indicate the single-phase nature of the sample, the results of SEM and TEM make it possible to establish the presence of a main (about 50 nm) and a minor ultrafine (about 10 nm) fraction of ΣREFeO3 nanoparticles. The bimodal size distribution of nanoparticles was also reflected in the magnetic behavior of this substance: the presence of several sextet components in the Mössbauer spectra, the hard single-domain magnetic nature of the main fraction of 50 nm UHE REO nanoparticles, and the superparamagnetic state of the minor fraction of 10 nm UHE REO nanoparticles. Thus, the unusual features of nanostructured ΣREFeO3 can potentially be used for the creation of new generations of transformers, magnetic memory systems, magnetic screens, radio devices, etc.

Bui L.M. , Cam S.T. , Buryanenko I.V. , Semenov V.G. , Nazarov D.V. , Kazin P.E. , Nevedomskiy V.N. , Gerasimov E.Y. , Popkov V.I.
An Ultra-High-Entropy Rare Earth Orthoferrite (UHE REO): Solution Combustion Synthesis, Structural Features and Ferrimagnetic Behavior
Dalton Transactions. 2023. V.52. N15. P.4779-4786. DOI: 10.1039/d2dt04103k WOS Scopus РИНЦ CAPlus PMID OpenAlex

Поступила в редакцию:	22 дек. 2022 г.
Принята к публикации:	6 мар. 2023 г.
Опубликована online:	17 мар. 2023 г.
Опубликована в печати:	12 апр. 2023 г.

Web of science:	WOS:000950886400001
Scopus:	2-s2.0-85151041068
РИНЦ:	54908265
Chemical Abstracts:	2023:543635
PMID (PubMed):	36930052
OpenAlex:	W4327685950

БД	Цитирований
Scopus	11
Web of science	8
OpenAlex	9
РИНЦ	9