Abstract
(1 − x)BiFeO3–xBaTiO3 (x = 0.00, 0.10, 0.20, 0.25 and 0.30) ceramics have been fabricated by the solid state reaction method. The effects of BaTiO3 (BTO) doping on the structural, electrical and magnetic properties of BiFeO3 (BFO) ceramics have been investigated. It is found that BTO doping can affect the structure of the BFO ceramics, and the multiferroic properties of BFO ceramics can hence be improved. The XRD measurements reveal that the structure of BFO was changed from rhombohedral to pseudo-cubic and the impurity phases were decreased both due to BTO doping. Analysis of microstructure indicates that the BTO doping can hinder the grain growth. Electrical measurements show that BFO doping improves the ferroelectric property due to the significantly decrease of the electric leakage density and the oxygen vacancy concentrations. Magnetic measurements indicate that the antiferromagnetism behavior of BFO is turned into a weak ferromagnetism state by addition of BTO. The related mechanism is also discussed in the paper.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China (Nos. 11305142, 11175159), Zhengzhou Administration of Science and Technology of Henan Province of China (No. 131PPTGG411-10), and Key Members of the Outstanding Young Teacher of Zhengzhou University of Light Industry.
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Dai, H.Y., Chen, J., Li, T. et al. Effect of BaTiO3 doping on the structural, electrical and magnetic properties of BiFeO3 ceramics. J Mater Sci: Mater Electron 26, 3717–3721 (2015). https://doi.org/10.1007/s10854-015-2890-x
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DOI: https://doi.org/10.1007/s10854-015-2890-x