Journal of Physics Condensed Matter · 2001 · 61 citations · 37 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsSolid State PhysicsSolid-state ChemistryCrystal ChemistryDielectricsFerroelectric MaterialsOrder-disorder TransformationsPerovskite MaterialsPhase TransitionsChemical OrderingFerroelectric Dielectric ResponseOxide PerovskitesPerovskite Crystal StructurePerovskite DielectricsPhase Transition TemperatureRelaxor Ferroelectric CeramicsRelaxor Ferroelectrics
The influence of chemical B-site ordering between Sc3+ and Nb5+ cations on the properties of the Pb(Sc1/2Nb1/2)O3 (PSN) relaxor has been investigated. Depending of the degree of ordering, PSN exhibits different behaviours. For a completely disordered material, a relaxor–ferroelectric phase transition is observed at 379 K by DSC. Ordering between Sc3+ and Nb5+ cations on the B-site of the perovskite structure leads to a non-homogeneous material constituted of two phases: ordered and disordered phases. The phase transition temperature of the ordered phase is confirmed to be lower (346 K) than that of the disordered phase. It appears that the phase transition of the disordered phase is shifted to lower temperature owing to the presence of the ordered phase.
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L. E. Cross · Ferroelectrics · 1987 · 3.5K citations
Freezing of the polarization fluctuations in lead magnesium niobate relaxors
D. Viehland, S. J. Jang, L. E. Cross et al. · Journal of Applied Physics · 1990 · 1.3K citations
Relaxorferroelectrics: An overview
L. E. Cross · Ferroelectrics · 1994 · 1.2K citations