Fig. 3: Dynamic characteristics and energy of ZrO2 capacitor.
From: Accurate compact nonlinear dynamical model for a volatile ferroelectric ZrO2 capacitor
a Static and differential elastances obtained from the model show two regions of negative differential elastance corresponding to the negative slope in the static QV curve. Inset contains the free energy at zero applied voltage calculated from the model where only the minimum at \(Q=0{C}\) was observed. b Voltage waveforms from the model are plotted against time: voltage across the nonlinear capacitor from the model (\(v(q)\)), voltage across the dynamic resistance (\(v({R}_{{dyn}})\)), and experimental and modeled voltages across the ZrO2 capacitor. c Reversibly stored energy in the device capacitance and irreversibly energy loss due to the dissipated energy through the dynamical resistance of the ZrO2 capacitor. Panels b and c are for 100 kHz and 4 V amplitude across the ZrO2 capacitor.
