Fig. 2: Compact nonlinear model of ZrO2 capacitor.
From: Accurate compact nonlinear dynamical model for a volatile ferroelectric ZrO2 capacitor
a Schematic diagram of the ZrO2 device model (boxed) and the series capacitor in the measurement circuit. b Calculated dynamic charge Q vs. time of a ZrO2 capacitor overlapped on top of the experimentally measured waveform demonstrates the quality of the model. c Ferroelectric switching current of the model and experiment measurements. d The experimental and best-fit modeled dynamic QV characteristic, along with the calculated static QV characteristic extracted from the model. The inset in panel d shows an expanded view of the static QV around 2.28 V, where a 15.4 mV wide region of NDC was calculated. All the data in panels b–d are for the case of 100 kHz and 4 V amplitude across the ZrO2 capacitor.
