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Fabrication of high-critical current density Yba2Cu3O7−δ films using a fluorine-free sol gel approach

  • Y. Xu (a1), A. Goyal (a2), N. A. Rutter (a2), D. Shi (a3), M. Paranthaman (a2), S. Sathyamurthy (a2), P. M. Martin (a2) and D. M. Kroeger (a2)...

Abstract

Superconducting Yba2Cu3O7−δ (YBCO) films with critical transition temperature Tc(0) of 90 K were fabricated via a fluorine-free, metal trimethylacetate based sol-gel route. Precursor films were spin-coated onto single-crystal (001) LaAlO3 (LAO) and (001) SrTiO3 (STO) substrates. Optimization of the burnout process resulted in films with excellent out-of-plane and in-plane texture. Transport critical current densities, Jc, of 1.6 and 1.1 MA/cm2 were obtained at 77 K in self-field on films grown on LAO and STO substrates, respectively. This is the first demonstration of high-Jc YBCO film fabrication using a fluorine-free, ex-situ process.

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Corresponding author

a)Address all correspondence to this author at Bethel Valley Road, P.O. Box 2008 Oak Ridge, TN 37831-6116. e-mail: goyala@ornl.gov

References

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Fabrication of high-critical current density Yba2Cu3O7−δ films using a fluorine-free sol gel approach

  • Y. Xu (a1), A. Goyal (a2), N. A. Rutter (a2), D. Shi (a3), M. Paranthaman (a2), S. Sathyamurthy (a2), P. M. Martin (a2) and D. M. Kroeger (a2)...

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