Fig. 3: Macroscopic ferroelectric properties.
From: Thinning ferroelectric films for high-efficiency photovoltaics based on the Schottky barrier effect
a P–V hysteresis loops of Pt/PZT/SRO capacitors with different PZT thicknesses (frequency: 3.3 kHz). b Positive and negative coercive voltages as a function of thickness
