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Ferroelectric PbZr0.2Ti0.8O3 thin films on epitaxial Y-Ba-Cu-O

Publication Type

Journal Article

Authors

Ramesh, Ramamoorthy, A. Inam, W.K. Chan, F. Tillerot, B. Wilkens, C.C. Chang, T. Sands, J.M. Tarascon, V.G. Keramidas

DOI

10.1063/1.105651

Abstract

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.

Journal

Applied Physics Letters

Volume

Year of Publication

1991

ISSN

00036951

Notes

cited By 97

Research Areas

Ramesh Lab