Abstract
The dynamic hysteresis of Nb-doped Pb(ZrxTi1−x)O3 (PZT, 0.40 ≤ x ≤ 0.60) ceramics with different phase structures was investigated as functions of frequency f and electric field amplitude E0. When E0 grows over ∼1.5 times of coercive field Ec, all the loops become well saturated and their scaling relations of hysteresis area ⟨A⟩ against f and E0 can be expressed with an identical form as ⟨A⟩∝f0.01E00.10 for either tetragonal phase or morphotropic phase, which is in good agreement with our previous result of rhombohedral PZT [Chen et al., J. Appl. Phys. 114, 244101 (2013)]. The results indicate that ferroelectrics with fairly distinct domain structures could have similar dynamic hysteresis and scaling behavior at high-E0 region.
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