Ferroelectrics · 1976 · 41 citations · 2 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsCrystal StructureSolid State PhysicsCritical PhenomenaCrystal ChemistryCrystallographyPhase TransitionsRaman SpectroscopySolid-state Phase TransitionsCritical ExponentsCrystallographic Phase TransitionsOrder Parameter AnalysisOrder Parameter TheoryRoom-temperature CrystallographyStructural Phase TransitionsTemperature Dependence
We report some new crystallographic and Raman scattering data on the 193 K phase transition in RbCaF3. Below Tc, the temperature dependence of the order parameter deduced from the relative distortion (c - a)/a is well described by a critical exponent β = 0.33.
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