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Superconducting properties of mixtures of Y1Ba2Cu3O9−x and Y1.8Ba0.2Cu1O5−y

Published online by Cambridge University Press:  31 January 2011

X. W. Wang ,
H. S. Kwok ,
L. Shi ,
J. P. Zheng ,
P. Mattocks  and
D. T. Shaw
X. W. Wang
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
H. S. Kwok
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
L. Shi
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
J. P. Zheng
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
P. Mattocks
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
D. T. Shaw
Affiliation:
Institute on Superconductivity, State University of New York at Buffalo, Amherst, New York 14260
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Abstract

The superconducting properties of heat-treated mixtures of Y1Ba2Cu3O9−x (A) and Y1.8Ba0.2Cu1O5−y (B) have been studied. As the concentration of B increases, the Meissner effect decreases, while the resistance jump near the superconducting transition increases. When the fraction of B approaches about 0.5, the superconducting transition disappears. Four different phases are identified in the mixture from the x-ray spectra, i.e., Y1Ba2Cu3O9−x, Y2Ba1Cu1O5–z, Y2Cu2O5, and Y2O3. The results agree well with the published phase diagram of this system.

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Articles
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Journal of Materials Research , Volume 3 , Issue 6 , December 1988 , pp. 1297 - 1303
Copyright
Copyright © Materials Research Society 1988

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References

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