Investigation of multiferroic properties of doped BiFeO3–BaTiO3 composite ceramics

The 0.85Bi0.95Dy0.05Fe0.98Cu0.02O3–0.15BaTiO3 and 0.85Bi0.95Dy0.05FeO3–0.15BaTiO3 multiferroic composites were prepared by a solid state reaction method. The XRD patterns of the composites confirmed the presence of BiFeO3 and BaTiO3. The ME coupling of the composites shows conspicuous enhancement co...

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Bibliographic Details
Published inMaterials letters Vol. 142; pp. 42 - 44
Main Authors Sathiya Priya, A., Shameem Banu, I.B., Anwar, Shahid
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2015
Subjects
Barium titanates
BaTiO3
Ceramics
Data storage
Doped BiFeO3
Ferroelectricity
Ferromagnetism
Joining
Magnetoelectric coupling
Memory devices
Multiferroic composites
Solid state
Ferromagnetism
Ferroelectricity
Magnetoelectric coupling
Doped BiFeO3
BaTiO3
Multiferroic composites
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Summary:The 0.85Bi0.95Dy0.05Fe0.98Cu0.02O3–0.15BaTiO3 and 0.85Bi0.95Dy0.05FeO3–0.15BaTiO3 multiferroic composites were prepared by a solid state reaction method. The XRD patterns of the composites confirmed the presence of BiFeO3 and BaTiO3. The ME coupling of the composites shows conspicuous enhancement compared to that of undoped BiFeO3. Among the composites, Bi0.95Dy0.05Fe0.98Cu0.02O3–BaTiO3 composite shows multiferroic properties better than that of Bi0.95Dy0.05FeO3–BaTiO3 composite. The results are attractive for the applications in memory devices. [Display omitted] •New (Dy,Cu)-doped BiFeO3–BaTiO3 composites were prepared by a sol–gel method.•Enhanced ME effect was observed at room temperature for the composites compared to BFO.•ME coupling is strain-mediated.•Magnetic property and ME coupling are better for (Dy,Cu)-doped BiFeO3 based composite.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2014.11.111