Abstract

Polycrystalline samples of PLKZT with the composition Pb 0.93(La 1− x K x ) 0.07(Zr 0.65Ti 0.35)O 3 (where x = 0, 0.1, 0.3, 0.5 and 0.7) have been synthesized by a chemical method. X-ray studies of the compounds suggest the formation of a single-phase material. Studies of the dielectric constant and dielectric loss as a function of temperature (room temperature to 350°C) at 1 and 10 kHz frequencies suggest that the compound has relaxor behaviour and undergoes a diffuse type of phase transition.

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