Improved Ferroelectric and Ferromagnetic Properties of 1 − xBiFeO3-xBaTiO3 Ceramics

This paper introduces the solid-phase preparation of bismuth ferrite-based multiferroic ceramics (1 − x BiFeO 3 - x BaTiO 3 ). After the Ba and Ti doping, it can be observed from the XRD pattern that the crystal structure of the sample changes obviously. From the picture obtained from the SEM test,...

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Bibliographic Details
Published inJournal of superconductivity and novel magnetism Vol. 32; no. 4; pp. 1001 - 1005
Main Authors Yao, Qifu, Xu, Xin, He, Yanna, Mao, Weiwei, Li, Xing’ao
Format Journal Article
LanguageEnglish
Published New York Springer US 15.04.2019
Subjects
Characterization and Evaluation of Materials
Condensed Matter Physics
Magnetic Materials
Magnetism
Original Paper
Physics
Physics and Astronomy
Strongly Correlated Systems
Superconductivity
Solid phase
BiFeO
Doped
Multiferroic
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Summary:This paper introduces the solid-phase preparation of bismuth ferrite-based multiferroic ceramics (1 − x BiFeO 3 - x BaTiO 3 ). After the Ba and Ti doping, it can be observed from the XRD pattern that the crystal structure of the sample changes obviously. From the picture obtained from the SEM test, the grain size of the doped samples was significantly reduced. Pure BiFeO 3 (BFO) showed a large leakage current, and in the leakage current test, we found that the leakage current of Ba, Ti-doped samples decreased significantly, which may be related to doping, leading to oxygen vacancy reduction. From the magnetization hysteresis loops, we can see that the ferromagnetism of the doped samples was significantly improved compared to pure BFO, because Ba, Ti doping destroys the G-type antiferromagnetic sequence of pure BFO, thereby enhancing the ferromagnetic properties.
ISSN:1557-1939
1557-1947
DOI:10.1007/s10948-018-4795-4