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摘要:
Multiferroic ceramics Bi0.9Ho0.1Fe1-xMnxO3 (x=0.05, 0.10, 0.15) ceramics were prepared by solid state reaction method. X-ray diffraction (XRD) indicated that Bi0.9Ho0.1Fe1-xMnxO3 ceramics exit secondary phase Bi2Fe4O9 at about 27°. With increasing Mn4+content, the gradualmerging of the (104) and (110) peaks and the gradual disappearance of the (006) peakindicateda structural transition from the rhombohedral to the tetragonalwere observed. SEM images indicated that the grain size increases with increasing Mn4+ ions dopant concentration. Ferroelectric performance testing were shown that all samples present the typical lossunsaturated ferroelectric behavior, as the P-E loops were not saturated. The remanent polarization of Bi0.9Ho0.1Fe1-xMnxO3 (x=0.05, 0.10, 0.15) ceramics increased and then decreased sharply.The M-H curves recorded at room temperature revealed that the remanent magnetization increasedwith increasing Mn4+ content. In other words, the unique M-H loops indicated that the Bi0.9Ho0.1Fe1-xMnxO3 ceramics have a metamagnetic transition with increasing magnetic filed.
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来源 :
Journal of Functional Materials
ISSN: 1001-9731
年份: 2014
期: 17
卷: 45
页码: 17075-17078