Zhihong Wang, Xi Xiang Zhang, Xianbin Wang, Weisheng Yue, Jingqi Li, Jianmin Miao and Weiguang Zhu Giant Flexoelectric Polarization in a Micromachined Ferroelectric Diaphragm Advanced Functional Materials 23
A significant phenomenon of reversed remnant polarization is observed in a bent Pb(Zr0.52Ti0.48)O3 (PZT) diaphragm. The resonant peaks at –4 and –5 V indicate that negative polarization is induced in the PZT film by these negative biases. However, after removing the negative bias, the negative polarization switches to the positive direction. The flexoelectric polarization reverses the negative remnant polarization.
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