Abstract
Ceramics of a new solid solution, (1 − x)Pb(Mg1/3Nb2/3)O3-xBi(Zn1/2Ti1/2)O3 [(1-x)PMN-xBZT], have been prepared (with x = 0.05–0.30) and investigated for their structure and relaxor ferroelectric properties. The structure remains pseudocubic (or rhombohedral) up to the solubility limit of x = 0.275. All the compositions studied show broad and diffuse peaks in the temperature and frequency dependences of dielectric permittivity, indicating typical relaxor behavior. The temperature dependences of dielectric permittivity for all the samples studied follow an empirical quadratic law that describes the high temperature slope of the permittivity. The diffuseness in the dielectric peaks was found to increase linearly with the increasing amount of BZT, which can be attributed to the increase in chemical disorder in the system.
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