Domain Walls Stabilized by Intrinsic Phonon Modes and Engineered Defects Enable Robust Ferroelectricity in HfO2

Chenxi Yu, Jiajia Zhang, Xujin Song +6

Ferroelectric ${\mathrm{HfO}}_2$ has attracted extensive research interest for its applications in AI era. The domain walls play a crucial role in phase structure stabilization and p…