Реферат: Polymorphic modification of iron oxide, known as ε-Fe2O3, exists only in the form of nanoparticles with characteristic sizes up to several tens of nanometers. Particles of these sizes exhibit a large coercive force, about 20 kOe at room temperature. In the temperature range of 80-150 K, a magnetic transition occurs in ε-Fe2O3, accompanied by a sharp decrease in the coercive force. At the same time, there are significant differences in the magnetic behavior of "large" (~20 nm) particles and ultra-small particles (up to 6 nm). A number of experimental facts indicate the manifestation of size effects that lead to a change in the magnetic structure in particles of these sizes. In addition, a surface effect is also manifested for such particles - a significant contribution to the magnetic behavior is governed by surface magnetic anisotropy. In this paper, a brief review of the manifestation of these size and surface effects in the magnetic properties of ε-Fe2O3 nanoparticles is carried out. Keywords: iron oxide ε-Fe2O3, nanoparticles, size effect, surface magnetic anisotropy.

Библиографическая ссылка: Balaev D.A. , Dubrovsky A.A. , Knyazev Y.V. , Semenov S.V. , Kirillov V.L. , Martyanov O.N.
The Manifestation of Surface and Size Effects in the Magnetic Properties of ε-Fe2O3 Nanoparticles. (Brief overview)
Physics of the Solid State. 2023. V.65. N6. P.938-946. DOI: 10.21883/pss.2023.06.56105.12h РИНЦ OpenAlex

Оригинальная: Балаев Д.А. , Дубровский А.А. , Князев Ю.В. , Семенов С.В. , Кириллов В.Л. , Мартьянов О.Н.
Проявление поверхностных и размерных эффектов в магнитных свойствах наночастиц ε-Fe2O3. (Краткий обзор)
Физика твердого тела. 2023. Т.65. №6. С.979-988. DOI: 10.21883/FTT.2023.06.55654.12H РИНЦ OpenAlex

Даты:

Поступила в редакцию:	17 апр. 2023 г.
Принята к публикации:	11 мая 2023 г.

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РИНЦ:	59755372
OpenAlex:	W4385653566

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БД	Цитирований
OpenAlex	2
РИНЦ	3

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