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High Jc YBa2Cu3O7-δ films via rapid, low pO2 pyrolysis

Published online by Cambridge University Press:  31 January 2011

J. T. Dawley ,
P. G. Clem ,
M. P. Siegal  and
D. L. Overmyer
J. T. Dawley
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
P. G. Clem
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
M. P. Siegal
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
D. L. Overmyer
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185
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Abstract

In this investigation YBa2Cu3O7-δ (YBCO) films were fabricated via a metal acetate, trifluoroacetic acid based sol-gel route and spin-coat deposited on (100) LaAlO3 with a focus on maximizing Jc, while minimizing processing time. We demonstrate that the use of a low-pO2 atmosphere during the pyrolysis stage can lead to at least a tenfold reduction in pyrolysis time, compared to a 1 atm O2 ambient. High-quality YBCO films on LaAlO3, with Jc values up to 3 MA/cm2 at 77 K, can be routinely crystallized from these rapidly pyrolyzed films.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 1 , January 2001 , pp. 13 - 16
Copyright
Copyright © Materials Research Society 2001

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References

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