Direct observation of reversible oxygen migration and phase transitions in ferroelectric Hf0.5Zr0.5O2 thin-film devices. (August 2021) - Nukala, Pavan; Ahmadi, Majid; de Graaf, Sytze; Kooi, Bart J.; Noheda, Beatriz; Zandbergen, Henny; Wei, Yingfen