Abstract
AC-impedance spectroscopic studies are carried out on Solid ceramics lead magnesium niobate-lead titanate (1−x)PbMg1/3Nb2/3O3–xPbTiO3 which has been prepared and characterized in the present work. With x taking the νalues of 0.33 and 0.35, this corresponds to the morphotropic phase boundary composition with at normal ferroelectric behaνiour. Complex modulus and impedance plots exhibit two depressed semicircles and one depressed semicircle, respectively for (1−x)PMN−xPT. This can be attributed to the nearly same capacitance of grain boundaries as well as to the higher grain boundary resistance for (1−x)PMN−xPT. For the two compositions, an analysis of the dielectric behavior has been made. The ferroelectric character was analyzed by studying the evolution of polarization as a function of the applied field for the different samples, with the variation of the temperature.
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Lifi, H. et al. (2022). Investigation of Complex Impedance and Modulus Properties of the Relaxor PMN-XPT Ceramics. In: Vaseashta, A., Achour, M.E., Mabrouki, M., Fasquelle, D., Tachafine, A. (eds) Proceedings of the Sixth International Symposium on Dielectric Materials and Applications (ISyDMA’6). Springer, Cham. https://doi.org/10.1007/978-3-031-11397-0_9
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DOI: https://doi.org/10.1007/978-3-031-11397-0_9
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