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Deterministic Switching of Antipolar Variants in Antiferroelectric Membranes
 

Deterministic Switching of Antipolar Variants in Antiferroelectric Membranes

Yi‐De Liou, Shih‐Chao Chang, Hong‐Ren Wang, Puneet Kaur, Shin‐Hong Chen, Bo‐Cia Chen, Yong‐Jyun Wang, Le Thi Quynh, Yen‐Lin Huang, Ye Cao, …
Advanced materials (Weinheim), Vol.38(7), e19717
01/02/2026
: 41251498
: WOS:001617202000001
antiferroelectric domain manipulation antiferroelectrics freestanding membranes phase field modeling transmission electron microscopy
Antiferroelectric (AFE) materials, characterized by their antiparallel dipole alignments, offer distinct ferroic functionalities desirable for high‐energy‐density storage and next‐generation low‐power electronic devices. However, the intrinsic degeneracy among antipolar domain variants poses a critical obstacle to their deterministic, nonvolatile control and practical integration into functional architectures. Here, selective and reversible manipulation of AFE domain configurations in freestanding PbZrO3 membranes via electron beam irradiation are demonstrated. By tailoring the electron beam–induced built‐in electric field, controlled writing and erasure of both in‐plane and out‐of‐plane antipolar domain variants are enabled. Complementary phase‐field simulations uncover the underlying energetic landscape and domain evolution under varying irradiation conditions, offering mechanistic insight into the observed transformations. These findings demonstrate a promising strategy for domain‐level engineering of antiferroelectrics, establishing a generic and programmable approach to deterministically control antipolar ordering in perovskite systems—suggesting a pathway toward controlled, reversible switching of AFE domains in nanoscale oxide architectures. Electron‐beam engineering of freestanding PbZrO3 membranes enables selective and reversible switching between in‐plane and out‐of‐plane antiferroelectric domain variants. By tuning the built‐in electric field through beam focusing, deterministic control of antipolar order is achieved. This programmable, non‐contact approach offers a general strategy for reconfigurable domain engineering in perovskite antiferroelectrics and nanoelectronic applications.
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