Comparative Studies of Ferroelectric and Magnetic Phase Transitions in Pb(Fe^sub 1/2^Nb^sub 1/2^)O^sub 3^-PbMO^sub 3^ (M-Ti, Zr) Multiferroic Solid Solutions

• Published in: Ferroelectrics Vol. 475; no. 1; p. 20
• Main Authors: Raevski, I P, Titov, V V, Laguta, V V, Marysko, M, Kubrin, S P, Chen, H, Chou, C-C, Blazhevich, A V, Raevskaya, S I, Sarychev, D A, Minasyan, T A, Pustovaya, L A, Zakharchenko, I N, Malitskaya, M A
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis Ltd 01-01-2015
• Subjects: Crystal lattices; Crystallography; Dielectric properties; Electromagnetics; Ferroelectrics; Phase transitions; Temperature effects
• ISSN: 0015-0193; 1563-5112

Some peculiar features of magnetic x,T-phase diagram of (1-x)PbFe...Nb...O...PbTiO... system at x ... 0.1 have been ascribed previously to the change of the lattice symmetry from rhombohedral to tetragonal or to the decrease of the lattice parameter with x. We carried out structural, dielectric, magnetization, and Mossbauer studies of (1-x)PbFe...Nb...O...PbZrO... system, where the symmetry remains rhombohedral, while the lattice parameter increases with x. However, the magnetic x,T-phase diagram of (1-x)PbFe...Nb...O...PbZrO... appeared to be very similar to that of (1-x)PbFe...Nb...O...PbTiO... Anomalies of composition dependence of magnetic phase transition temperatures at x ... 0.1 are supposed to be due to the percolation phase transition. (ProQuest: ... denotes formulae/symbols omitted.)