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Hexaferrite multiferroics: From bulk to thick films
Koutzarova, T.; Ghelev, C.; Peneva, P. et al.
2018In Journal of Physics. Conference Series, 992 (1)
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Keywords :
Ferrite; Film preparation; Pelletizing; Sol-gels; Strontium compounds; Thick films; Characteristic peaks; Hexagonal particles; Hexagonal shapes; Micro-structural properties; Microstructural analysis; Microstructure analysis; Sol-gel auto-combustion; Z-type hexaferrite; Iron compounds
Abstract :
[en] We report studies of the structural and microstructural properties of Sr3Co2Fe24O41 in bulk form and as thick films. The precursor powders for the bulk form were prepared following the sol-gel auto-combustion method. The prepared pellets were synthesized at 1200 °C to produce Sr3Co2Fe24O41. The XRD spectra of the bulks showed the characteristic peaks corresponding to the Z-type hexaferrite structure as a main phase and second phases of CoFe2O4 and Sr3Fe2O7-x. The microstructure analysis of the cross-section of the bulk pellets revealed a hexagonal sheet structure. Large areas were observed of packages of hexagonal sheets where the separate hexagonal particles were ordered along the c axis. Sr3Co2Fe24O41 thick films were deposited from a suspension containing the Sr3Co2Fe24O41 powder. The microstructural analysis of the thick films showed that the particles had the perfect hexagonal shape typical for hexaferrites. © Published under licence by IOP Publishing Ltd.
Disciplines :
Physics
Chemistry
Materials science & engineering
Author, co-author :
Koutzarova, T.;  E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia, Bulgaria
Ghelev, C.;  E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia, Bulgaria
Peneva, P.;  E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia, Bulgaria
Georgieva, Borislava;  E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia, Bulgaria
Kolev, Svetoslav;  E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia, Bulgaria
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Closset, Raphaël ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Language :
English
Title :
Hexaferrite multiferroics: From bulk to thick films
Publication date :
2018
Event name :
20th International Summer School on Vacuum, Electron and Ion Technologies
Event place :
Sozopol, Bulgaria
Event date :
25–29 September 2017
Audience :
International
Journal title :
Journal of Physics. Conference Series
ISSN :
1742-6588
eISSN :
1742-6596
Publisher :
Institute of Physics Publishing
Volume :
992
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
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since 26 June 2018

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