%0 Journal Article
%A Ramamoorthy Ramesh
%A A Inam
%A W.K Chan
%A F Tillerot
%A B Wilkens
%A C.C Chang
%A T Sands
%A J.M Tarascon
%A V.G Keramidas
%B Applied Physics Letters
%D 1991
%G eng
%P 3542-3544
%R 10.1063/1.105651
%T Ferroelectric PbZr0.2Ti0.8O3 thin films on epitaxial Y-Ba-Cu-O
%V 59
%X We have fabricated epitaxial ferroelectric PbZr0.2Ti 0.8O3/YBa2Cu3O7-x heterostructures on single crystalline [001] LaAlO3. Only the (00l) peaks of the PbZr0.2Ti0.8O3 (PZT) film are observed, indicating that the epitaxial, c-axis oriented YBCO film is a good structural template for the heteroepitaxial growth of PZT films, in addition to being a metallic bottom electrode. A saturation polarization and remanence as high as 38 and 26.5 μC/cm2 (at 7.5 V, 0.5 kHz), respectively, have been achieved. The coercive field is about 100 kV/cm.