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Bulk Ceramic and Screen Printed EuBa2Cu3O7-δ

Published online by Cambridge University Press:  28 February 2011

W. S. Fu
Affiliation:
Dept. of Physics, Massachusetts Inst, of Technology, Cambridge, MA 02139
D. S. Ginley
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
M. A. Mitchell
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
E. L. Venturini
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
B. Morosin
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
J. F. Kwak
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
R. J. Baughman
Affiliation:
Sandia National Laboratories, P. 0. Box 5800, Albuquerque, NM 87185
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Abstract

The structural, magnetic and electrical properties of EuBa2Cu3O7-δ have been investigated both for bulk ceramics and screen printed thick films. The bulk ceramic reaches zero resistance at 92 K, and has large intragranular critical current density inferred from magnetization loops; the directly measured critical current density is substantially lower because of the weak links (Josephson junctions) between grains. Screen printed thick films on strontium titanate have poor magnetic and resistive transitions with evidence for two phases. High temperature oxygen anneals produce a bulk ceramic with significantly enhanced magnetic properties.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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