Abstract:
Neutron diffraction was used to study the temperature evolution of the structure of $(1-x)$Pb(Fe$_{2/3}$W$_{1/3}$O$_{3}$)–$(x)$PbTiO$_{3}$ solid solutions of two compositions $x$ = 0.2 and 0.3, in which the existence of the morphotropic phase boundary (MPB) is observed, in the temperature range 90–400 K. It is shown that the system is in the two-phase state, in which the cubic and the tetragonal phases coexist, even at temperatures higher than MPB. The temperature dependences of the phase percentages were obtained. The static displacements of lead ions from the crystallographic position (000) are estimated in terms of a multiwell potential.
Citation:
I. A. Dolgakov, A. A. Naberezhnov, O. A. Alekseeva, S. Borisov, V. Simkin, M. Tovar, “Temperature evolution of the crystal structure of multiferroic solid solutions $(1-x)$Pb(Fe$_{2/3}$W$_{1/3}$O$_{3}$)–$(x)$PbTiO$_{3}$”, Fizika Tverdogo Tela, 59:10 (2017), 1940–1944; Phys. Solid State, 59:10 (2017), 1961–1965
\Bibitem{DolNabAle17}
\by I.~A.~Dolgakov, A.~A.~Naberezhnov, O.~A.~Alekseeva, S.~Borisov, V.~Simkin, M.~Tovar
\paper Temperature evolution of the crystal structure of multiferroic solid solutions $(1-x)$Pb(Fe$_{2/3}$W$_{1/3}$O$_{3}$)--$(x)$PbTiO$_{3}$
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 10
\pages 1940--1944
\mathnet{http://mi.mathnet.ru/ftt9425}
\crossref{https://doi.org/10.21883/FTT.2017.10.44962.087}
\elib{https://elibrary.ru/item.asp?id=30108723}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 10
\pages 1961--1965
\crossref{https://doi.org/10.1134/S1063783417100122}
Linking options:
https://www.mathnet.ru/eng/ftt9425
https://www.mathnet.ru/eng/ftt/v59/i10/p1940
This publication is cited in the following 1 articles:
N. V. Zaitseva, A. A. Naberezhnov, E. P. Smirnova, “Two-phase state of the crystal structure of (1-x)PbFe$_{2/3}$W$_{1/3}$O$_{3-x}$PbTiO$_{3}$ solid solutions ($x$ = 0.25, 0.3, and 0.35) at room temperature”, Tech. Phys., 66:1 (2021), 67–70