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Ba2YCu3O7−x Thin Films with Jc>105 A/cm2 at 77 K Prepared by Metalorganic Deposition at Reduced Oxygen Pressure

Published online by Cambridge University Press:  25 February 2011

Robert B. Hallock
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
W.E. Rhine
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
M.S. Jolly
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
MIchael J. Cima
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Superconducting Ba2YCu3O7-x films 0.1-0.2 gim thick were prepared by spin coating a methanol solution of Ba, Y and Cu acrylates on (100)LaAlO3 and firing to 800°C in a total pressure of 1 mm O2. X-ray diffraction showed that these films were epitaxial with the c-axis normal to the substrate. Zero resistance was achieved above 90 K and transport DC critical current densities as high as 125,000 A/cm2 were measured at 77 K in zero applied field.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

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