TY - JOUR
T1 - Unidirectional electric field enables reversible ferroelectric domain engineering
AU - Jiang, Xingan
AU - Li, Muzhi
AU - Cui, Yuanyuan
AU - Wu, Xiao
AU - Deng, Zunyi
AU - Zhang, Xiangping
AU - Deng, Jianming
AU - Wang, Xiaolei
AU - Zhang, Dongdong
AU - Yang, Xiangdong
AU - Peng, Zhuoyin
AU - Liang, Zhao
AU - Wang, Xueyun
AU - Yang, Weiyou
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/12
Y1 - 2025/12
N2 - The deterministic control of ferroelectric polarization via an external field is critical for advancing the technologies of modern information storage. Conventionally, reversible and cyclic polarization switching in ferroelectric materials requires bipolar electric fields. The present work demonstrates the efficient reversible and cyclic ferroelectric domain switching under a unipolar electric field in van der Waals ferroelectric CuInP2S6, enabled by Cu-ion migration across van der Waals gaps. It further unveils the remarkable “shape memory” effect of manipulated domains, and the programmable domain patterning under a unipolar electric field. These findings not only deepen the understanding of ferro-ionic coupling mechanism, but also provide insights into the origin of multiple polarization states, negative capacitance, and the quantized charge transport, paving the way for emerging storage technologies and low-power neuromorphic applications.
AB - The deterministic control of ferroelectric polarization via an external field is critical for advancing the technologies of modern information storage. Conventionally, reversible and cyclic polarization switching in ferroelectric materials requires bipolar electric fields. The present work demonstrates the efficient reversible and cyclic ferroelectric domain switching under a unipolar electric field in van der Waals ferroelectric CuInP2S6, enabled by Cu-ion migration across van der Waals gaps. It further unveils the remarkable “shape memory” effect of manipulated domains, and the programmable domain patterning under a unipolar electric field. These findings not only deepen the understanding of ferro-ionic coupling mechanism, but also provide insights into the origin of multiple polarization states, negative capacitance, and the quantized charge transport, paving the way for emerging storage technologies and low-power neuromorphic applications.
UR - https://www.scopus.com/pages/publications/105013295416
U2 - 10.1038/s41467-025-63049-2
DO - 10.1038/s41467-025-63049-2
M3 - Article
C2 - 40817103
AN - SCOPUS:105013295416
SN - 2041-1723
VL - 16
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 7607
ER -