1. Sharp/diffuse antiferroelectric-ferroelectric phase transition regulated by atomic displacement ordering.
- Author
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Han, Bing, Fu, Zhengqian, Zhao, Guoxiang, Chen, Xuefeng, Wang, Genshui, and Xu, Fangfang
- Subjects
- *
PHASE transitions , *ATOMIC displacements , *ATOMIC transitions , *ANTIFERROELECTRIC materials - Abstract
It is the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition that determines the specific application scenario of antiferroelectric materials. Here, we report that the evolution of the atomic displacement ordering from full-ordered to semi-ordered modulation should be responsible for the change in the behavior of the AFE-FE transition from sharp to diffuse. The novel semi-ordered configuration is originated from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which just makes the AFE-FE transition diffuse but maintains the switching field. These results provide atomic-scale understanding for AFE-FE transition and new insights for designing hysteresis-free antiferroelectric materials. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
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