Reply to: On the ferroelectricity of CH3NH3PbI3 perovskites.
Yongtao LiuLiam CollinsRoger ProkschSongkil KimBrianna R WatsonBenjamin DoughtyTessa R CalhounMahshid AhmadiAnton V IevlevStephen JesseScott T RettererAlexei BelianinovKai XiaoJingsong HuangBobby G SumpterSergei V KalininBin HuOlga S OvchinnikovaPublished in: Nature materials (2019)