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首页> 外文期刊>Physica status solidi, B. Basic research >Crystal structure and multiferroic properties of the BiFeO3-PrFeO3-DyFeO3-BaTiO3 systems
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Crystal structure and multiferroic properties of the BiFeO3-PrFeO3-DyFeO3-BaTiO3 systems

机译:BiFeO3-PrFeO3-DyFeO3-BaTiO3体系的晶体结构和多铁性

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The binary and quaternary solid solutions (1-x)BiFeO3-xPrFeO(3) and BiFeO3-PrFeO3-DyFeO3-BaTiO3 have been investigated for attaining ferromagnetic ferroelectricity in bulk ceramics. The coexistence of ferromagnetism and ferroelectricity has been observed only in the quaternary compositions, 0.4BiFeO(3)-0.1PrFeO(3)-0.1DyFeO(3)-0.4BaTiO(3) (M-r = 0.04 emu/g, P-r = 4.2 muC/cm(2)) and 0.45BiFeO(3)-0.075PrFeO(3)-0.025DyFeO(3)-0.45BaTiO(3) (Mr = 0.03 emu/g, Pr = 1.0 muC/cm(2)). The introduction of DyFeO3 into the ternary 0.45BiFeO(3)-0.1PrFeO(3)-0.45BaTiO(3) resulted in the production of spontaneous magnetization. The binary (1 -x)BiFeO3-xPrFeO(3) solid solution showed spontaneous magnetization at x greater than or equal to 0.2, but showed paraelectric behavior. The crystal structures have been analyzed using neutron and XRD diffraction data. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
机译:已经研究了二元和四元固溶体(1-x)BiFeO3-xPrFeO(3)和BiFeO3-PrFeO3-DyFeO3-BaTiO3用于在块状陶瓷中获得铁磁铁电。仅在四元组成中观察到铁磁性和铁电共存,即0.4BiFeO(3)-0.1PrFeO(3)-0.1DyFeO(3)-0.4BaTiO(3)(Mr = 0.04 emu / g,Pr = 4.2 muC / cm(2))和0.45BiFeO(3)-0.075PrFeO(3)-0.025DyFeO(3)-0.45BaTiO(3)(Mr = 0.03 emu / g,Pr = 1.0 muC / cm(2))。 DyFeO3引入三元0.45BiFeO(3)-0.1PrFeO(3)-0.45BaTiO(3)导致自发磁化的产生。二元(1-x)BiFeO3-xPrFeO(3)固溶体在x处显示大于或等于0.2的自发磁化强度,但显示出顺电行为。使用中子和XRD衍射数据分析了晶体结构。 (C)2004 WILEY-VCH Verlag GmbH&Co. KGaA,Weinheim。

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