Lr. Zheng et al., DRIFT AND DEFORMATION OF THE HYSTERESIS CURVE IN THIN-FILM FERROELECTRIC CAPACITORS WITH CONDUCTANCE, Journal of physics. D, Applied physics, 29(7), 1996, pp. 2020-2024
In this paper, the contribution of leakage to the hysteresis curve in
thin film ferroelectric capacitors is analysed quantitatively by apply
ing a very simple circuit model and experiment. Based on our previous
analysis of Current-voltage characteristics in thin film ferroelectric
capacitors, the deformed hysteresis loops due to leakage are calculat
ed with respect to various barriers and frequencies, and are verified
with our laser ablated Pt/Pb(Zr,Ti)O-3/Pt thin film capacitors. Some i
nteresting phenomena, such as gap in hysteresis curves, vertical drift
of hysteresis loops, etc, are discussed.