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Laser Patterning of High Temperature Superconducting Oxide Films

Published online by Cambridge University Press:  25 February 2011

A. Gupta ,
B. W. Hussey ,
R. Jagannathan ,
E. I. Cooper  and
E. A. Giess
A. Gupta
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
B. W. Hussey
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
R. Jagannathan
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
E. I. Cooper
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
E. A. Giess
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
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Abstract

A focused argon ion laser (514 nm) beam has been used for patterning superconducting lines of YBa2Cu3O7–δ using films prepared from metal trifluoroacetate solution precursors. A stoichiometric mixture of the precursors is dissolved in methanol, and the solution is spun on yttria-stabilized zirconia substrate to form a film. The film is patterned by irradiating in selected areas by direct laser writing to convert the irradiated layers to an intermediate fluoride state, the nonirradiated areas being unchanged. The nonirradiated areas are then dissolved away, leaving a pattern of the fluoride material. This patterned layer is converted to the superconducting oxide in a subsequent high temperature step involving reaction with water vapor.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 129: Symposium B – Laser and Particle-Beam Modification of Chemical Processes on Surfaces , 1988 , 603
Copyright
Copyright © Materials Research Society 1989

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References

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