Highly textured thick films by a melt‐annealing technique in the Bi‐Sr‐Ca‐Cu‐O system
作者:
Ming Xu,
A. L. Cornelius,
Donglu Shi,
J. G. Chen,
B. Dabrowski,
D. Miller,
期刊:
Applied Physics Letters
(AIP Available online 1989)
卷期:
Volume 55,
issue 21
页码: 2236-2238
ISSN:0003-6951
年代: 1989
DOI:10.1063/1.102356
出版商: AIP
数据来源: AIP
摘要:
A melt‐annealing method has been developed to deposit highly textured superconducting thick films on different substrates in the Bi‐Sr‐Ca‐Cu‐O system. As opposed to previous techniques, this method uses powder made from an extremely dense glass sample to yield very uniform and dense thick films. The x‐ray diffraction and scanning electron microscopy results indicate that the superconducting phase is strongly oriented along thecaxis perpendicular to the substrate and the films are chemically uniform. Electrical transport measurements consistently show aTcnear 80 K for all samples.
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