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Crystal structure and multiferroic properties of the BiFeO 3 –PrFeO 3 –DyFeO 3 –BaTiO 3 systems
Author(s) -
Kim Jeong Seog,
Cheon Chae Il,
Oh WhaSook,
Jang Pyung Woo
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304576
Subject(s) - ferroelectricity , multiferroics , materials science , ferromagnetism , ternary operation , magnetization , solid solution , crystallography , crystal structure , neutron diffraction , ferromagnetic material properties , spontaneous magnetization , condensed matter physics , dielectric , chemistry , physics , metallurgy , optoelectronics , magnetic field , quantum mechanics , computer science , programming language
The binary and quaternary solid solutions (1 – x )BiFeO 3 – x PrFeO 3 and BiFeO 3 –PrFeO 3 –DyFeO 3 –BaTiO 3 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 μC/cm 2 ) and 0.45BiFeO 3 –0.075PrFeO 3 –0.025DyFeO 3 –0.45BaTiO 3 ( M r = 0.03 emu/g, P r = 1.0 μC/cm 2 ). The introduction of DyFeO 3 into the ternary 0.45BiFeO 3 –0.1PrFeO 3 –0.45BaTiO 3 resulted in the production of spontaneous magnetization. The binary (1 – x )BiFeO 3 – x PrFeO 3 solid solution showed spontaneous magnetization at x ≥ 0.2, but showed paraelectric behavior. The crystal structures have been analyzed using neutron and XRD diffraction data. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)