Polarization retention for Au/Pb(Zr0.52Ti0.48)O3/YBa2Cu3O7−x ferroelectric capacitors has been studied at elevated temperatures. A device with an effective area of 4×10−3 cm2 and 1 μm thickness was fabricated, and its retention measured at 150 °C and 200 °C. The retention was studied for two polarization directions in Pb(Zr0.52Ti0.48)O3 (PZT) by the pyroelectric current and phase detection method as well as by the conventional double pulse method. A polarization degradation of less than 5.5% was detected for PZT at 200 °C for more than 24 h.
No takes yet. Share an insight, caveat, or question.
Zomorrodian et al. (1996) studied this question.