In this paper, the structural, dielectric and ferroelectric properties of Pb0.93La0.07(Zr0.60Ti0.40)O3 [PLZT] prepared by the high temperatures solid state reaction technique and the chemical coprecipitation technique are reported. The structural parameters such as the lattice constant (a, c), average crystallite size (D), X-ray density (ρx), and lattice strain (η) have been determined using X-ray diffraction data. Average grain size and surface morphological studies were carried out using Scanning Electron Microscopy (SEM) techniques. Variation of real of part dielectric constant (Ã?ŽÃ?Â) and loss tangent (tanδ) was studied at room temperature as well as at higher temperatures. The compositions exhibit normal dielectric behaviour, attributed to Maxwell- Wagner type interfacial polarization. PLZT shows ferroelectric to paraelectric phase transition at 230 oC as observed from dielectric measurements as a function of temperature. The values of remanent polarization (Pr) for the PLZT synthesis by solid state reaction and chemical coprecipitation techniques are found to be 31.41 μC/cm2, 14.78 μC/cm2 and 13.28 kV/cm, 21.81 kV/cm, respectively. Observation of ferroelectric hysteresis loop at room temperature depicts increased remnant polarization and decreased coercively for the PLZT prepared by chemical coprecipitation method, when compared with that of solid state reaction method.
