Journal of the Physical Society of Japan · 1976 · 22 citations · 3 references
Natural SciencesMaterials SciencePhysicsCrystal StructureMaterials PhysicsSolid State PhysicsFerroelectric CeramicsFerroelectric MaterialsInorganic MaterialsFerroelectric CrystalsFerroelectric PropertiesFerroelectricityPolarizationSpontaneous Polarization
It has been found that the polarity of the spontaneous polarization of NH 4 IO 3 along the b axis in its polar phase below 95°C can be reversed by the d c electric field, and therefore NH 4 IO 3 can be said to be ferroelectric. The polarity reversal is also ascertained by etching behavior of the crystal.
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