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XRD spectrum of the LSCO/PZT/LSCO/ heterostructure.
(a) Cross-sectional structure of the LSCO/PZT/LSCO/ under transmission electron microscope (TEM). The corresponding SAED patterns are shown in the inset. (b)–(d) present interfaces from various layers under high-resolution TEM. No chemical reaction or interdiffusion between different layers was observed.
A typical hysteresis loop of the LSCO/PZT/LSCO capacitors integrated on . The insets show the switchable polarization as a function of applied voltage (left, top) and hysteresis loop of the LSCO/PZT/LSCO capacitor integrated on (right, bottom).
Fatigue characteristic of the LSCO/PZT/LSCO capacitor as a function of switching cycles.
Polarization of the LSCO/PZT/LSCO capacitor as a function of retention time.
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