Origin of the large strain response in tenary SrTi0.8Zr0.2O3 modified Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3 lead-free piezoceramics

Electric‐field induced phase transition and fatigue behaviors of (Bi0.5+x/2Na0.5‐x/2)0.94Ba0.06Ti1‐xFexO3 ferroelectrics

“…A drastic deviation from typical ferroelectric behavior occurs, which is evident from the decreasing of S neg and increasing of S max (0.30% for BNBT‐0.13Fe) during bipolar cycling. It should be noted that the P 2 in I ‐ V curves is sharper than other ferroelectrics materials, with drastic increase in strain. The defect dipoles with oriented arrangement to P s would have pinning effect when the nanodomains intend to align along electric field.…”

Enhanced electrical properties in ferroelectric thin films on conductive Au–LaNiO3 nanocomposite electrodes via modulation of Schottky potential barrier

“…According to the recent work of Guo et al, the peak at the lower electric eld can be ascribed to the eldinduced long-range order ferroelectric domains. 31 Another obvious difference is that the switching current density of the PZT lm on the Au-LNO electrode is higher than those of the other two samples. During the switching process of ferroelectric domains, the switching current is related to the growth rate of domain nuclei.…”

High strain in (Bi1/2Na1/2)0.935Ba0.065TiO3–Sr3FeNb2O9 lead-free ceramics with giant piezoresponse

“…In order to decompose the increased ferroelectric domains, an obvious current peak occurs when the current decrease. 39 A clear relation between domains and morphology and dielectric frequency dispersion has been established, nanodomains correspond to strong frequency dispersion while large domains show weaker frequency dependence. 40 Therefore, the domains evolution can be characterized by the dielectric spectrum.…”