Ferroelectrics · 1995 · 25 citations · 13 references
Natural SciencesChemistryPhysicsCondensed Matter PhysicsSolid State PhysicsSolid-state ChemistryCrystal ChemistryCrystalline MaterialsFerroelectric MaterialsPhase TransitionsSolid-state Phase TransitionsDielectric ConstantDielectric Constant MeasurementFerroelectric CrystalsFerroelectric Phase TransitionsFerroelectric StructureHigh-temperature Phase RelationsPhase Transition TemperatureStructural Phase Transitions
Abstract Partially deuterated betaine phosphite (DBPI) crystals were investigated by measurements of the dielectric constant and by means of electron paramagnetic resonance (EPR). Two phase transitions could be detected in the temperature range from 100 K to 380 K: a high-temperature phase transition at Tc1 = (355 ± 3) K and a ferroelectric phase transition at Tc2 = (297 ± 3) K. The EPR studies show that the ferroelectric phase transition is related to the simultaneous ordering of the protons and deuterons in the O-H/D… O bonds.
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Ferroelectricity in betaine phosphite
J. Albers, A. Klöpperpieper, Henrik Rother et al. · Ferroelectrics · 1988 · 124 citations
Antiferroelectricity in Betaine Phosphate
J. Albers, A. Klöpperpieper, Henrik Rother et al. · physica status solidi (a) · 1982 · 118 citations