Effect of phase structure on the dynamic hysteresis scaling behavior in (1 − x)BiScO3–xPbTiO3 bulk ceramics

The ferroelectric hysteresis loops of (1 − x)BiScO3–xPbTiO3 (BSPT) ceramics with different phase structure were measured under sinusoidal electric fields. Three-stage behaviors between ln〈A〉 (〈A〉 is hysteresis loop area) and ln E0 (E0 is the amplitude of field) were identified with the increasing of E0. These three-stage behaviors reflected different polarization behavior in each stage, which were distinct from the existing two-stage behavior. The shifting of dividing points between two stages with the evolution of phase structure revealed that in the tetragonal phase domain switching has a higher activation field due to the different domain structure.