Switching Dynamics and Improved Efficiency of Free‐Standing Antiferroelectric Capacitors

Abstract

Abstract The switching dynamics of antiferroelectric lead zirconate (PbZrO3) freestanding capacitors compared to their epitaxial counterparts is reported. Frequency dependence of hysteresis indicates that freestanding capacitors exhibit a lower dispersion of switching fields, lower residual polarization, and faster switching response as compared to epitaxially‐clamped capacitors. As a consequence, freestanding capacitor membranes exhibit better energy storage density and efficiency.

Keywords

• antiferroelectrics
• freestanding membranes
• Kolmogorov‐Avrami‐Ishibashi model
• Rayleigh's coefficient
• Williamson‐Hall plot