Dielectric Properties of Pseudobinary Pb(Fe_1⁄2Nb_1⁄2)O₃-Pb(Mg_1⁄2W_1⁄2)O₃ Solid Solution

Abstract

The dielectric constant and dielectric loss have been examined as a function of composition (1−x)Pb(Fe_1⁄2Nb_1⁄2)O₃-xPb(Mg_1⁄2W_1⁄2)O₃; at x=0.10 interval, temperature and applied voltage. Maximum dielectric constant and minimum loss together with the reduction of the T_c peak value (as a function of applied voltage) exist at x=0.10. Alternatively, our theoretical considerations confirm the experimental results of tanδ for compositions containing x=0.00–0.20 in the system (1−x)Pb(Fe_1⁄2Nb_1⁄2)O₃-xPb(Mg_1⁄2W_1⁄2)O₃.