1994•FerroelectricsRequires access

Crystal growth and properties of potassium tantalate niobate, KTa1–xNbxO3, ferroelectric

Venugopal A. Kallur, R.K. Pandey

Abstract

Bulk single crystals of potassium tantalate niobate, KTa1–xNbxO3, ferroelectric with different values of Ta/Nb ratios have been grown by temperature gradient transport technique (TGTT). The samples with different values of × were characterized by measuring their spontaneous polarization, dielectric constant and losses, pyroelectric coefficients, Curie temperatures and lattice constants. This paper presents the results of the crystal growth experiments, ferroelectric characterization techniques and properties of potassium tantalate niobate crystals.

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Key concepts: Tantalate, Ferroelectricity, Potassium niobate, Materials science, Curie temperature, Lithium tantalate, Dielectric, Pyroelectricity