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Springer, Journal of Materials Research, 3(18), p. 677-681, 2003

DOI: 10.1557/jmr.2003.0090

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

Journal article published in 2003 by Y. Xu, A. Goyal, N. A. Rutter, D. Shi, M. Paranthaman ORCID, S. Sathyamurthy, P. M. Martin, D. M. Kroeger
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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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.