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Sandwiched CoFe2O4/SrFe11.5Al0.5O19/CoFe2O4 nanoparticles with exchange-coupling effectстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Gorbachev Evgeny, Trusov Lev, Kovalenko Anton, Morozov Anatolii, Kazin Pavel
- Журнал: Nanoscale
- Том: 13
- Год издания: 2021
- Издательство: RSC Pub.
- Местоположение издательства: Cambridge, England
- Первая страница: 18340
- Последняя страница: 18348
- DOI: 10.1039/d1nr05491k
- Аннотация: (Accepted)Exchange-coupled hard/soft ferrite nanoparticles are prospective to squeeze out a part of expensive magnets based on rare-earth elements. However, known exchange-coupled composite ferrite nanoparticles often suffer from a lack of a powerful enough hard-magnetic core, a high defectivity of magnetic phases, and a poor interface between them. Herein we demonstrate the first efficient synthesis of sandwiched nanomagnets, which exhibit the pronounced exchange-coupling effect. This work is featured by using individual high-coercive strontium hexaferrite nanoplates prepared by a borate glass crystallization method as cores for the composite particles. High crystal quality of the hexaferrite cores as a substrate provides an epitaxial growth of CoFe2O4 layers on the 001 facets from the organic high-boiling solvent and results in enhancing the remanence magnetization and the maximum energy product of the composite material. The results of this work open new prospects for fabrication of multilayer oxide heterostructures with a synergetic performance which expands applications of exchange-coupled composites.https://submissions.rsc.org/tracker/NR-ART-08-2021-005491?t=eLB9CQL792Y2xdmpilozYUtUCJ40sztXFsQTCVko8ByGUA%3D%3D
- Добавил в систему: Горбачев Евгений Андреевич
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