Randall, C. A., Fan, Z., Reaney, I., Chen, L.-Q. & Trolier-McKinstry, S. Antiferroelectrics: history, fundamentals, crystal chemistry, crystal structures, size effects, and applications. J. Am. Ceram. Soc. 104, 3775–3810 (2021).
Electron ptychography reveals a ferroelectricity dominated by anion displacements
