Abstract
Abstract In this paper, the structural, microstructural, dielectric, ferroelectric and magnetic properties of vanadium-doped Barium Calcium Titanate (BCT) ceramics have been reported. All the ceramic samples were prepared by the conventionalsolid-state reaction method. By Rietveld refinement of X-Ray diffraction patterns, we confirm the pervoskite structure of all the prepared samples. A decrease has been observed in lattice parameters (a and c) and lattice volume on the substitution of Ti4+ ions by vanadium ions in BCT lattice. SEM micrographs revealed change in microstructure from irregular, large grain porous structure to a regular small and compact structure. The dielectric constant data above Tc has been fitted with both Curie-Weiss Law and Power Law. The dielectric behavior of the presently studied system is more accurately explained by Power law. Feeble ferromagnetism has also been observed with vanadium substitution in BCT ceramics.
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