Abstract
We report on the effect of cooling rate on the crystallographic orientation and ferroelectric properties of PbZr0.2Ti0.8O3 (PZT) thin films grown on a lattice matched bottom electrode such as c-axis oriented Y-Ba-Cu-O (YBCO). The cooling rate from deposition temperature influences the crystallographic orientation of the ferroelectric c axis of the PZT film as well as the electrical properties of the YBCO bottom electrode. As the volume fraction of the ferroelectric phase with the c axis in the plane of the film becomes higher, the hysteresis loops become more rounded and the polarization values become smaller. Highly c-axis oriented films, obtained by cooling from the growth temperature at 20 °C/min, show an almost square hysteresis loop with the largest polarization values.
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@article{Ramesh_1993, title={Effect of crystallographic orientation on ferroelectric properties of PbZr0.2Ti0.8O3 thin films}, volume={63}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.109943}, DOI={10.1063/1.109943}, number={6}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ramesh, R. and Sands, T. and Keramidas, V. G.}, year={1993}, month=aug, pages={731–733} }