Temperature of the Magnetic Ordering of the Trivalent Iron Oxide ε-Fe2O3 | Sciact - CRIS-система Института катализа

Temperature of the Magnetic Ordering of the Trivalent Iron Oxide ε-Fe2O3 Научная публикация

Журнал

Physics of the Solid State
ISSN: 1063-7834 , E-ISSN: 1090-6460

Вых. Данные

Год: 2019, Том: 61, Номер: 3, Страницы: 345-349 Страниц : 5 DOI: 10.1134/S1063783419030053

Ключевые слова

GIANT COERCIVE FIELD; FERROMAGNETIC-RESONANCE; PHASE-TRANSITION; SILICA-GEL; NANOPARTICLES; Fe2O3/SiO2; PARTICLES

Авторы

Balaev D.A. ¹ , Dubrovskiy A.A. ¹ , Yakushkin S.S. ² , Bukhtiyarova G.A. ² , Martyanov O.N. ²

Организации

1	Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch,Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
2	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Информация о финансировании (1)

Российский научный фонд

17-12-01111

The trivalent iron oxide ε-Fe2O3 is a fairly rare polymorphic iron oxide modification, which only exists in the form of nanoparticles. This magnetically ordered material exhibits an intriguing magnetic behavior, specifically, a significant room-temperature coercivity H C (up to ~20 kOe) and a magnetic transition in the temperature range of 80–150 K accompanied by a sharp decrease in the H C value. Previously, the temperature of the transition to the paramagnetic state for ε-Fe2O3 was believed to be about 500 K. However, recent investigations have shown that the magnetically ordered phase exists in ε-Fe2O3 also at higher temperatures and, around 500 K, another magnetic transition occurs. Using the data on the magnetization and temperature evolution of the ferromagnetic resonance spectra, it is shown that the temperature of the transition of ε-Fe2O3 particles 3–10 nm in size to the paramagnetic state is ~850 K.

Balaev D.A. , Dubrovskiy A.A. , Yakushkin S.S. , Bukhtiyarova G.A. , Martyanov O.N.
Temperature of the Magnetic Ordering of the Trivalent Iron Oxide ε-Fe2O3
Physics of the Solid State. 2019. V.61. N3. P.345-349. DOI: 10.1134/S1063783419030053 WOS Scopus РИНЦ CAPlus OpenAlex

Балаев Д.А. , Дубровский А.А. , Якушкин С.С. , Бухтиярова Г.А. , Мартьянов О.Н.
Температура магнитного упорядочения оксида трехвалентного железа ε-Fe2O3

Физика твердого тела. 2019. Т.61. №3. С.478-482. DOI: 10.21883/ftt.2019.03.47239.277RSCI РИНЦ OpenAlex

Поступила в редакцию:	11 окт. 2018 г.
Опубликована в печати:	1 мар. 2019 г.
Опубликована online:	22 апр. 2019 г.

Web of science:	WOS:000468540100011
Scopus:	2-s2.0-85064956321
РИНЦ:	38692658
Chemical Abstracts:	2019:876695
OpenAlex:	W2942449124

БД	Цитирований
Scopus	5
Web of science	5
РИНЦ	6
OpenAlex	6