UM
The effect of cr-doping on the structure, dielectric and magnetic properties of BiFeO 3 and Pb(Fe 0.5 Sb 0.5 )O 3 multiferroics
Raevskaya S.I.3; Kubrin S.P.3; Pushkarev A.V.1; Olekhnovich N.M.1; Radyush Y.V.1; Titov V.V.3; Chen H.4; Chou C.-C.2; Malitskaya M.A.3; Raevski I.P.3; Stashenko V.V.3; Sarychev D.A.3
2018
Source PublicationSpringer Proceedings in Physics
Volume207
Pages195-208
AbstractX-ray diffraction and Mössbauer studies of perovskite BiFe Cr O and PbFe Cr Sb O solid solution ceramics, fabricated under high pressure (4–6 GPa) have been carried out. Two morphotropic phase boundaries were revealed in the BiFe Cr O system: one between rhombohedral (R3c) and orthorhombic (Pbam) phases at x ≈ 0.5–0.6 and the other between the orthorhombic (Pbam) and monoclinic (C2/c) phases at x ≈ 0.9. It was found out that substitution of Cr for Fe in BiFeO does not lead to the appearance of a low-spin state of Fe ions, as was predicted by some first-principles calculations. A composition dependence of the magnetic phase transition temperature for BiFe Cr O is very similar to that in the solid solutions of BiFeO with non-magnetic ions, implying the lack of magnetic exchange between Fe and Cr . The reason of such behavior seems to be a difference in their electronic configuration. Addition of Cr to PbFe Sb O leads to a dramatic lowering and diffusion of the dielectric permittivity maximum and its shift to lower temperatures. Thus, Cr substitution for Fe seems to destroy both ferroelectric and magnetic long-range order in perovskite multiferroics.
DOI10.1007/978-3-319-78919-4_16
URLView the original
Language英語
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Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Scientific Practical Materials Research Centre of NAS of Belarus
2.National Taiwan University of Science and Technology
3.Southern Federal University
4.Universidade de Macau
Recommended Citation
GB/T 7714
Raevskaya S.I.,Kubrin S.P.,Pushkarev A.V.,et al. The effect of cr-doping on the structure, dielectric and magnetic properties of BiFeO 3 and Pb(Fe 0.5 Sb 0.5 )O 3 multiferroics[C],2018:195-208.
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