Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
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Multiferroic properties of BiFeO3–BaTiO3 based ceramics
Tomoaki FUTAKUCHITatsunori KAKUDAYuichi SAKAI
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2014 Volume 122 Issue 1426 Pages 464-468

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Abstract

Perovskite single-phase ceramics of Mn-doped (1 − x)BiFeO3xBaTiO3 with a wide range of composition (x = 0–1.0) were prepared using the solid-state reaction. Remanent polarization Pr, was observed for (1 − x)BiFeO3xBaTiO3 (x = 0.15–1.0) and remanent magnetization Mr, was observed for (1 − x)BiFeO3xBaTiO3 (x = 0.15–0.8). The maximum value of Pr = 39 µC/cm2 was obtained at x = 0.33 with a high Curie temperature TC, of 420°C. The maximum value of Mr = 0.18 emu/g was obtained at x = 0.33 with a high magnetic Curie temperature TCM, of 360°C. A multiferroic phase diagram is constructed from the TC and TCM observed for the samples. A multiferroic state is maintained to a high temperature up to 250°C in the wide range of x = 0.15–0.55.

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© 2014 The Ceramic Society of Japan
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