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6. Preparation of Y-Ba-Cu-O high Tc superconducting thin films by plasma-assisted organometallic chemical vapor deposition.

Author

Bai, G. R., Tao, W., Wang, R., Xie, L. M., Zhang, X. K., Huang, J., Qian, C. T., Zhou, W. K., Ye, C. Q., Ren, J. G., Li, Y. Q., Luo, W. M., and Chen, J. B.

Subjects
THIN films, COPPER oxide superconductors, METALLIC oxides, CHEMICAL vapor deposition
Abstract

Thin films of the high Tc superconducting Y-Ba-Cu metal oxide have been prepared for the first time by plasma-assisted organometallic chemical vapor deposition using β-diketonate chelates of Y, Ba, and Cu, Y(C11H19O2)3, Ba(C11H19O2)2, and Cu(C11H19O2)2 as starting materials, followed by post-annealing under a reduced pressure of oxygen stream. X-ray diffraction spectra indicate that the films deposited on the yttria-stabilized zirconia (YSZ) substrate have a significant preferential orientation of the crystallite c axis being perpendicular to the substrate surface. Four-probe resistivity measurements reveal the temperature of the onset of superconductivity at 91.6 K and zero resistance by 78.5 K. [ABSTRACT FROM AUTHOR]

Published
1989
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