Heterostructures of Pb(ZrxTi1-x)O3 and YBa2Cu3O7-? on MgO Substrate Prepared by Pulsed Laser Ablation
- 1 November 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (11R) , 5019
- https://doi.org/10.1143/jjap.32.5019
Abstract
Ferroelectric Pb(Zr0.52Ti0.48)O3 (PZT) thin films were integrated to high-T c superconducting YBa2Cu3O7-? (YBCO) films in PZT/YBCO/MgO(100) and YBCO/PZT/MgO(100) stacking structures by the pulsed laser ablation technique. The YBCO films in both structures were superconducting and c-axis oriented. The PZT films in both structures were of the perovskite structure having the (100) orientation. The detailed profile of PZT/YBCO interface was determined for the ferroelectric constituents. The ferroelectric properties of the PZT films were characterized in the temperature range of 40 K to 300 K. The remanent polarization was above 15 ?C/cm2 and the coercive field was 46 kV/cm at room temperature. The cycling fatigue and the loss tangent were improved at low temperature.Keywords
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