Switching dynamics and improved efficiency of free-standing antiferroelectric capacitors

Umair Saeed,David Pesquera,Ying Liu,Ignasi Fina, Saptam Ganguly,Jose Santiso,Jessica Padilla, Jose Manuel Caicedo Roque,Xiaozhou Liao,Gustau Catalan

arxiv（2023）

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摘要

We report the switching dynamics of antiferroelectric Lead Zirconate (PbZrO3) free standing capacitors compared to their epitaxial counterparts. 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.

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