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

The dynamic hysteresis scaling behaviors of Nb-doped Pb(Zr0.52Ti0.48)O-3 ceramics have been investigated as a function of electric field amplitude (E-0) and frequency (f) at different temperatures (T). The loop area <A> of saturated loops is found to follow various power laws as <A>E-0(0.3065) at fixed f and <A>f(0.0120) at fixed E-0. Furthermore, the linear scaling relation <A>=k(3)fE(0)+b(3) is estimated under various temperatures. The exponents (=0.01) and (=0.10) are T-independent, whereas the slopes k(3) and y-intercepts b(3) 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.