Japanese Journal of Applied Physics · 1991 · 24 citations · 8 references
Natural SciencesMaterials SciencePhysicsCeramic MaterialsCeramicsCondensed Matter PhysicsDielectric CeramicsDielectricsElectrical Properties Of CeramicsPerovskite MaterialsPhase TransitionsX-ray DiffractionAntiferroelectric CeramicsAntiferroelectric MaterialsDielectric HysteresisLattice ParametersPerovskite Crystal StructurePhase Transition TemperaturePowder DiffractionPowder X-ray Diffraction
Dielectric and X-ray diffraction measurements were used to characterize the structural phase transition occurring in antiferroelectric Pb(Yb 1/2 Nb 1/2 )O 3 compound. Dielectric behavior for ceramics shows a sharp transition with a large temperature hysteresis of about 6°C near transition temperature. The lattice parameters and spontaneous strain have been investigated in the temperature range between 20 and 400°C using X-ray powder diffraction. High temperature X-ray data indicates that the Pb(Yb 1/2 Nb 1/2 )O 3 undergoes an orthorhombic to cubic phase transition near transition temperature. The temperature dependence of the spontaneous strain is discussed by phenomenological theory.
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