Electric field and temperature induced local polarization switching and piezoresponse in Bi0.88Sm0.12FeO3 ceramics for nanoscale applications

Enhanced electrical properties of Cr2O3 addition NBT‐based high‐temperature piezoelectric ceramics

“…PFM is a powerful technique for studying ferroelectric phenomena, such as ferroelectric domain inversion, fatigue and storage mechanisms, and phase transitions of ferroelectric materials 39–41 . The external contribution to the piezoelectric response of ferroelectric materials is related to domains and DWs.…”

“…PFM is a powerful technique for studying ferroelectric phenomena, such as ferroelectric domain inversion, fatigue and storage mechanisms, and phase transitions of ferroelectric materials. [39][40][41] The external contribution to the piezoelectric response of ferroelectric materials is related to domains and DWs. The d 33 value of ferroelectric ceramics is determined by the macroscopic polarization arrangement induced by the external electric field, which results from the alignment of the dipole along the direction of the applied electric field.…”

Excellent energy storage density and superior discharge properties of NBT–NN–ST/xHfO2 ceramics via 0–3 type heterogeneous structure designing

“…9(a1)-(e1), all domains illustrate 180°phase switching at tip bias voltages, indicating a signicant contribution of 180°domains to polarization. 57,58 And according to the amplitude hysteresis loops, pure samples show basically symmetric saturated buttery curves, while the NBT-NN-ST/ xHfO 2 composites present offset buttery curves with an obvious change in shape as the content of x increases. This may be attributed to the formation of the built-in electric eld due to the presence of HfO 2 , which can be calculated according to the equation (U b = (U c+ + U c− )/2).…”