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Surface Effects and Magnetic Ordering in Few-Nanometer-Sized ε-Fe2O3 Particles Научная публикация

Журнал Journal of Applied Physics
ISSN: 0021-8979 , E-ISSN: 1089-7550
Вых. Данные Год: 2013, Том: 114, Страницы: 163911 Страниц : 5 DOI: 10.1063/1.4827839
Ключевые слова Ferrimagnetism; Magnetic moments; Silica gel; Superparamagnetism
Авторы Balaev D.A. 1 , Dubrovskiy A.A. 1 , Shaykhutdinov K.A. 1 , Bayukov O.A. 1 , Yakushkin S.S. 2 , Bukhtiyarova G.A. 2 , Martyanov O.N. 2
Организации
1 Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russia
2 Boreskov Institute of Catalysis, Russian Academy of Sciences, Siberian Branch, Novosibirsk 630090, Russia

Информация о финансировании (2)

1 Федеральное агентство научных организаций России 45
2 Президиум РАН 24.40

Реферат: The magnetic properties of ε-Fe2O3 nanoparticles with an average size of 3.4 nm in a silica gel matrix are investigated using Mössbauer technique, electron spin resonance, and magnetic measurements. Two magnetic subsystems reveal in magnetic measurements. Paramagnetic subsystem is formed by the Fe(III) ions in the smallest (<3.5 nm) particles' shell, while ferrimagnetic ordering in the “core” of the particles results in superparamagnetic behavior. The superparamagnetic behavior of the investigated samples is observed up to ∼800 K. The magnetic moment of the particles is formed by both the ferrimagnetic ordering characteristic of ε-Fe2O3 and the additional effect of uncompensated sublattices (planes).
Библиографическая ссылка: Balaev D.A. , Dubrovskiy A.A. , Shaykhutdinov K.A. , Bayukov O.A. , Yakushkin S.S. , Bukhtiyarova G.A. , Martyanov O.N.
Surface Effects and Magnetic Ordering in Few-Nanometer-Sized ε-Fe2O3 Particles
Journal of Applied Physics. 2013. V.114. P.163911. DOI: 10.1063/1.4827839 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 30 сент. 2013 г.
Принята к публикации: 14 окт. 2013 г.
Опубликована в печати: 28 окт. 2013 г.
Опубликована online: 30 окт. 2013 г.
Идентификаторы БД:
Web of science: WOS:000326639200066
Scopus: 2-s2.0-84887286086
РИНЦ: 21888332
Chemical Abstracts: 2015:269019
Chemical Abstracts (print): 162:346335
OpenAlex: W1967190997
Цитирование в БД:
БД Цитирований
Web of science 35
Scopus 36
РИНЦ 35
OpenAlex 34
Альметрики: