Spontaneous (zero-field) relaxor–to–ferroelectric-phase transition in disordered Pb(Sc1/2Nb1/2)O3
- 15 February 1995
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 77 (4) , 1671-1676
- https://doi.org/10.1063/1.358856
Abstract
Recently, it has been shown that, upon cooling, disordered Pb(Sc1/2Ta1/2)O3 ceramics transform spontaneously from a relaxor state to a ferroelectric state when processed in a manner that suppresses lead vacancies. If lead vacancies are present, the spontaneous ferroelectric transition is suppressed and the ceramics exhibit the usual relaxor behavior in a wide temperature range. It is shown that disordered Pb(Sc1/2Nb1/2)O3 ceramics have a similar nature: When produced in a manner that does not eliminate lead vacancies, they exhibit normal relaxor behavior. However, if stoichiometry is tightly controlled, disordered Pb(Sc1/2Nb1/2)O3 transforms spontaneously (under zero‐bias field) from a relaxor into a normal ferroelectric upon cooling.This publication has 9 references indexed in Scilit:
- Fabrication of perovskite lead magnesium niobatePublished by Elsevier ,2003
- Vogel-Fulcher relationship for the dielectric permittivity of relaxor ferroelectricsPhysical Review Letters, 1994
- Investigation of relaxors that transform spontaneously into ferroelectricsFerroelectrics, 1994
- The spontaneous relaxor-ferroelectric transition of Pb(Sc0.5Ta0.5)O3Journal of Applied Physics, 1993
- Dielectric properties of tetragonal lanthanum modified lead zirconate titanate ceramicsJournal of Applied Physics, 1993
- Freezing of the polarization fluctuations in lead magnesium niobate relaxorsJournal of Applied Physics, 1990
- Transmission electron microscopy of second-phase particles in Pb(Sc1/2Ta1/2)O3 Ferroelectric ceramicsJournal of Materials Science, 1990
- The contribution of structural disorder to diffuse phase transitions in ferroelectricsJournal of Materials Science, 1980
- Ordering and diffuse phase transitions in Pb(Sc0.5Ta0.5)O3 ceramicsSolid State Communications, 1979