Ferroelectrics · 1992 · 63 citations · 3 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsInorganic ChemistrySolid-state ChemistryCrystal ChemistryInorganic MaterialsPerovskite MaterialsCrystal Field Effects In Solid-state MaterialsElectrocaloric EffectOxide PerovskitesPerovskite Crystal Structure
Abstract The PbSc0,5Ta0,5O3 solutions are found to be a useful material for active elements of microcryogenic devices based on electrocaloric effect. A temperature difference of ΔT = 1. 0-1.8 K at field intensities 20–30 kV/cm in the interval of 210–310 K can be achieved by simultaneous or separate introducing of Sb and Co ions in B-sites of the lattice. The most important contribution to the electrocaloric effect is due to field-induced Fn3m → R3m phase transition in the case of high ordering of B-ions in the perovskite structure ABO3.
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