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[en] We present the structural and magnetic properties of a multiferroic Ba2Mg2Fe12O22 hexaferrite composite containing a small amount of MgFe2O4. The composite material was obtained by auto-combustion synthesis and, alternatively, by co-precipitation. The Ba2Mg2Fe12O22 particles obtained by co-precipitation have an almost perfect hexagonal shape in contrast with those prepared by auto-combustion. Two magnetic phase transitions, responsible for the composite’s multiferroic properties, were observed, namely, at 183 K and 40 K for the material produced by auto-combustion, and at 196 K and 30 K for the sample prepared by co-precipitation. No magnetic phase transitions in these temperature ranges were observed for a MgFe2O4 sample, which shows that the magnesium ferrite does not affect the multiferroic properties of this type of multiferroic metarials.
Disciplines :
Chemistry
Author, co-author :
Koutzarova, T.; Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko ChausseeSofia, Bulgaria
Kolev, Svetoslav; Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko ChausseeSofia, Bulgaria
Nedkov, I.; Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko ChausseeSofia, Bulgaria
Krezhov, Kiril; Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee. Blvd.Sofia, Bulgaria
Kovacheva, D.; Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bld. 11Sofia, Bulgaria
Ghelev, C.; Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko ChausseeSofia, Bulgaria
Vertruyen, Bénédicte ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Henrist, Catherine ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Cloots, Rudi ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Language :
English
Title :
Study of quasi-monophase Y-type hexaferrite Ba2Mg2Fe12O22 powder
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