Temperature‐Dependent Scaling Behavior of Dynamic Hysteresis in Pb(Zr,Ti)O₃ Ceramics

Abstract

The dynamic hysteresis scaling behaviors of Nb‐doped Pb(Zr0.52Ti0.48)O3 ceramics have been investigated as a function of electric field amplitude (E0) and frequency (f) at different temperatures (T). The loop area <A> of saturated loops is found to follow various power laws as <A> ∝ E00.3065 at fixed f and <A> ∝ f 0.0120 at fixed E0. Furthermore, the linear scaling relation <A> = k3 fαE0β + b3 is estimated under various temperatures. The exponents α (=0.01) and β (=0.10) are T‐independent, whereas the slopes k3 and y‐intercepts b3 are T‐dependent because the increasing temperature in the same phase range only decreases the threshold field of the reversal rather than change the dynamic reversal process.

Enhancing Speed and Stability of Polarization Reversal in Predominantly a/b‐Axes‐Oriented Bi4Ti3O12 Thin Films Deposited on Pt/Ti/SiO2/Si

“…Wongdamnern et al found that the α and β values of BaTiO 3 ceramics vary widely when the crystal structures change from tetragonal to orthorhombic and then to rhombohedral . However, Chen et al reported that the scaling relations of rhombohedral, morphotropic, and tetragonal PZT ceramics could take identical α and β values . Our research on (1 − x )Pb(Mg 1/3 Nb 2/3 )O 3 − x PbTiO 3 (PMN‐PT; 0.1 ≤ x ≤ 0.40) ceramics indicates that the α and β values are quite different at the composition of relaxor ferroelectric side ( x ≤ 0.33) from those at the normal ferroelectric side ( x = 0.40) .…”

“…The scaling behaviors have also been carried out in PbZrO 3 antiferroelectrics, Bi 4 YFeTi 3 O 15 (BYFTO) multiferroics, (K 0.5 Na 0.5 )NbO 3 lead‐free ferroelectrics, and molecular ferroelectric diisopropylammonium bromide . Temperature‐dependent and stress‐dependent scaling behaviors of ferroelectrics were also investigated on some ferroelectric materials . However, few investigations have been done on the dynamic scaling behaviors of oriented ferroelectric thin films or texture ferroelectric ceramics.…”