期刊
SCRIPTA MATERIALIA
卷 164, 期 -, 页码 6-11出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.01.025
关键词
MPB; Phase constitution; Ferroelectric; Magnetism; Magnetodielectric
类别
资金
- National Natural Science Foundation of China (NSFC) [51472063, 51772065, 51621091]
Morphotropic phase boundaries (MPB) consisting of rhombohedral, nonpolar orthorhombic and orthorhombic bridging phases were formed within the range of 0.1 <= x <= 0.2 in Bi1-xNdxFe0.97Ti0.03O3 ceramics. The intricate phase coexistence was verified by X-ray diffraction refinements, new modes at similar to 305 cm(-1) in Raman spectra and microstructure analyses. Impedance tests confirmed the MPB ranges via resistance fluctuations and revealed additional arcs from phase boundaries. Ferroelectric and magnetic properties were synchronously improved at MPB resulting in the apparent magnetodielectric effect with a permittivity change rate of similar to 1.5% at 10000 Oe. Additionally, magnetic domains were reversed at low voltages. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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