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(Color online) (a) The input pulse and voltage transient across R t from the pulse measurement for PZT. (b) The transferred P-V hysteresis loop from domain switching currents. The upper panel shows the equivalent circuit description of Sawyer-Tower and pulse measurements.
(Color online) Capacitor area dependences of domain coercive voltage and switching time for PZT at V = 2.5 V fitted by two solid lines.
(Color online) (a) Semilogarithmic time dependence of positive/negative coercive voltage for PZT after the presetting pulse sketched in the upper panel, where the solid lines are the best fitting of the data. (b) Exponential degradation of the remanent polarization with time fitted by the solid line.
(Color online) (a) Positive/negative domain switching current transient for BFO with an electrode area of 8.35 × 10−5 cm2 at V = ±12 V and pulse width of 1000 ns before (a solid line) and after (a dashed line) leakage current deduction, where the inset shows the voltage dependence of domain switching current fitted by two solid lines. (b) The transferred P-V hysteresis loops from domain switching currents, where the opened symbols show the measurement from a Radiant tester at 50 kHz.
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