КФУ. Карточка публикации. Room-temperature ferromagnetism in cerium dioxide powders

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ROOM-TEMPERATURE FERROMAGNETISM IN CERIUM DIOXIDE POWDERS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2015

Язык

английский

Авторы, сотрудники КФУ

Кораблева Стелла Леонидовна, автор

Рахматуллин Рафаиль Мансурович, автор

Семашко Вадим Владимирович, автор

Библиографическое описание на языке оригинала

R. M. Rakhmatullin, Room-temperature ferromagnetism in cerium dioxide powders / R. M. Rakhmatullin, V. V. Pavlov, V. V. Semashko, S. L. Korableva // JETP, 2015, 121 (2), pp 274-278

Аннотация

Room-temperature ferromagnetism is detected in a CeO2 powder with a grain size of about 35 nm and a low (<0.1 at %) manganese and iron content. The ferromagnetism in a CeO2 sample with a submicron crystallite size and the same manganese and iron impurity content is lower than in the nanocrystalline sample by an order of magnitude. Apart from ferromagnetism, both samples exhibit EPR spectra of localized paramagnetic centers, the concentration of which is lower than 0.01 at %. A comparative analysis of these results shows that the F-center exchange (FCE) mechanism cannot cause ferromagnetism. This conclusion agrees with the charge-transfer ferromagnetism model proposed recently.

Ключевые слова

EPR, cerium dioxide nanoparticles, room temperature ferromagnetism

Название журнала

J EXPTHEORPHYS+

URL

http://link.springer.com/article/10.1134/S1063776115080221

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https://repository.kpfu.ru/?p_id=112427

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Кораблева Стелла Леонидовна	ru_RU
dc.contributor.author	Рахматуллин Рафаиль Мансурович	ru_RU
dc.contributor.author	Семашко Вадим Владимирович	ru_RU
dc.date.accessioned	2015-01-01T00:00:00Z	ru_RU
dc.date.available	2015-01-01T00:00:00Z	ru_RU
dc.date.issued	2015	ru_RU
dc.identifier.citation	R. M. Rakhmatullin, Room-temperature ferromagnetism in cerium dioxide powders / R. M. Rakhmatullin, V. V. Pavlov, V. V. Semashko, S. L. Korableva // JETP, 2015, 121 (2), pp 274-278	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=112427	ru_RU
dc.description.abstract	J EXPTHEORPHYS+	ru_RU
dc.description.abstract	Room-temperature ferromagnetism is detected in a CeO2 powder with a grain size of about 35 nm and a low (<0.1 at %) manganese and iron content. The ferromagnetism in a CeO2 sample with a submicron crystallite size and the same manganese and iron impurity content is lower than in the nanocrystalline sample by an order of magnitude. Apart from ferromagnetism, both samples exhibit EPR spectra of localized paramagnetic centers, the concentration of which is lower than 0.01 at %. A comparative analysis of these results shows that the F-center exchange (FCE) mechanism cannot cause ferromagnetism. This conclusion agrees with the charge-transfer ferromagnetism model proposed recently.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	EPR	ru_RU
dc.subject	cerium dioxide nanoparticles	ru_RU
dc.subject	room temperature ferromagnetism	ru_RU
dc.title	Room-temperature ferromagnetism in cerium dioxide powders	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU