Study of Structural and Ferroelectric Properties of Dy doped BiFeO3–PbTiO3 solid solution

Abstract

 Solid state reaction method was used to fabricate Dy modified BiFeO₃-PbTiO₃ i.e 0.65Bi_1-xDy_xFeO₃-0.35PbTiO₃ with x = 0.15 and 0.20 solid solution. The structural analysis based on X-ray diffraction (XRD) data ensures the transition from rhombohedral  to tetragonal phase of solid solutions. SEM micrographs revealed a dense microstructure with non-uniform grains, which alters the ferroelectric properties of these solid solutions. Electric field dependent polarization (PE-hysteresis) loops confirm the ferroelectric nature of the compounds. Saturated ferroelectric loops with low remnant polarization have been observed which may be related to the ability of samples for various electronics device applications.