Microstructure and dielectric property of TiO₂-added LiNbO₃ solid solution

Abstract

LiNbO₃ is one of dielectric ceramics, and possesses ferroelectricity and a non-linear optic effect. The dielectric characteristic of the compound changes when TiO₂ is added. The so-called M-phase solid solutions in the Li₂O-Nb₂O-TiO₂ system were studied by XRD and HRTEM, and the dielectric constants of the compounds were also measured using an impedance analyzer. Characteristic satellite reflections of superstructure were confirmed from the peak of (012) on the XRD profiles.