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

Some peculiar features of magnetic x,T-phase diagram of (1-x)PbFe sub(1/2)Nb sub(1/2)O sub(3)-xPbTiO sub(3) system at x approximately 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...

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Published in:Ferroelectrics Vol. 475; no. 1; pp. 20 - 30
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, SI, Sarychev, DA, Minasyan, T A, Pustovaya, LA, Zakharchenko, IN, Malitskaya, MA
Format: Journal Article
Language:English
Published: 25-01-2015
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Summary:Some peculiar features of magnetic x,T-phase diagram of (1-x)PbFe sub(1/2)Nb sub(1/2)O sub(3)-xPbTiO sub(3) system at x approximately 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 sub(1/2)Nb sub(1/2)O sub(3)-xPbZrO sub(3) system, where the symmetry remains rhombohedral, while the lattice parameter increases with x. However, the magnetic x,T-phase diagram of (1-x)PbFe sub(1/2)Nb sub(1/2)O sub(3)-xPbZrO sub(3) appeared to be very similar to that of (1-x)PbFe sub(1/2)Nb sub(1/2)O sub(3)-xPbTiO sub(3). Anomalies of composition dependence of magnetic phase transition temperatures at x approximately 0.1 are supposed to be due to the percolation phase transition.
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ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2015.994989