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Preparation of Bipbsrcacuo Superconductors by Laser Pedestal Growth Method

Published online by Cambridge University Press:  28 February 2011

K. Hayashi
Affiliation:
Osaka Research Laboratories, Sumitomo Electric Industries, LTD. 1‐1‐3, Shimaya, Konohama‐ku, Osaka, 554, Japan
H. Nonoyama
Affiliation:
Osaka Research Laboratories, Sumitomo Electric Industries, LTD. 1‐1‐3, Shimaya, Konohama‐ku, Osaka, 554, Japan
M. Ueyama
Affiliation:
Osaka Research Laboratories, Sumitomo Electric Industries, LTD. 1‐1‐3, Shimaya, Konohama‐ku, Osaka, 554, Japan
M. Nagata
Affiliation:
Osaka Research Laboratories, Sumitomo Electric Industries, LTD. 1‐1‐3, Shimaya, Konohama‐ku, Osaka, 554, Japan
H. Hitotsuyanagi
Affiliation:
Osaka Research Laboratories, Sumitomo Electric Industries, LTD. 1‐1‐3, Shimaya, Konohama‐ku, Osaka, 554, Japan
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Abstract

Bi‐Pb‐Sr‐Ca‐Cu‐0 superconductors were prepared by the laser pedestal growth method. The high Tc phase was created only by post annealing. As the growing speed increased, the annealing time necessary to obtain a Tc above 100K decreased. When the low Tc phase was aligned with the growing direction, Tc was under 100K, but a Jc of 15B0A/cm2(77.3K, OT) was obtained. In this case, magnetic field dependence below 300 gauss was superior to that of Pb‐free materials.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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