Applied voltage signals for, (a) hysteresis loop measurement and (b) the PUND measurement.
Switching and nonswitching polarization as a function of applied pulse width from to 1 s at each voltage.
Experimental data of normalized switching polarization (symbols) and the calculated response using the NLS model as a function of applied pulse width in the positive region.
Experimental , , and the fitting of as a function of applied voltage.
Hysteresis loops at different temperatures from −60 to .
Dielectric constant and coercive voltage as a function of temperature. Inset shows the capacitance density as the voltage sweeps from to −12 V at different temperatures.
Switching (solid symbols) and nonswitching (open symbols) polarization as a function of temperature at different voltage pulses.
and used in the model simulation and corresponding frequencies at each evaluated voltages.
The required voltage amplitude of 1 ms pulses which provide switching polarization at each temperature.
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