Dynamic hysteresis and scaling behavior in epitaxial antiferroelectric film

In this study, we investigated the scaling behavior of dynamic hysteresis with frequency f and electric field E in epitaxial PbZrO3 antiferroelectric film on (111)-oriented SrTiO3 substrate. The scaling relation for the saturated hysteresis loops takes the form of hysteresis area < A > proportional to f(0.03)(E - 499)(0.20) at relatively low testing f. However, when frequency exceeds 30 Hz, the < A > shows stronger dependence on f while remains basically unchanged relation with E, leading to a form of < A > proportional to f(0.10)(E - 499)(0.20). The scaling behavior is modeled as occurring in a viscous medium where several forces, such as viscous and restoring forces, act on the phase transition process. (C) 2015 Elsevier B.V. All rights reserved.