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BiFeO3 is a ferroelectric with a Curie temperature of 830 °C, however, its piezoelectric performance at high temperature remains unclear. The current work reveals a disappearance/recovery of piezoelectricity in BiFeO3 at elevated temperature and upon cooling. In particular, that temperature is strongly frequency‐dependent and ranges from 280 to 430 °C between 0.5 and 140 Hz, respectively. Meanwhile,...