Ferroelectric solid solutions with perovskite- and columbite-type components: From structures formation to domain and hysteresis phenomena

Abstract

The paper reports results on the complex study on ferroelectric ceramics that represent solid solutions containing components with a perovskite-type or columbite-type structure. Solid solutions of a three-component (1[Formula: see text])[Formula: see text][Formula: see text]CdNb2O6 system are manufactured at [Formula: see text] = 0.05–0.20 and [Formula: see text] = 0.10. Domain structures in ceramic grains are studied. The consistency between experimental and calculated results is examined for coexisting phases split into non-180[Formula: see text] domains (mechanical twins) in the solid solution with [Formula: see text] = 0.15. A correlation between the internal structure (crystal, domain, granular, and defect) and fundamental electromechanical and polarization properties is stated for the studied three-component solid solutions.

Keywords

• Ferroelectric materials
• KNN
• elastic matching
• crystal structure
• domain structure
• electrophysical properties