Flexible stainless steel foil as a substrate for superconducting Y-Ba-Cu-O films
- 1 April 1990
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 5 (4), 717-720
- https://doi.org/10.1557/jmr.1990.0717
Abstract
As-deposited superconducting Y-Ba-Cu-O films have been grown on stainless steel substrates by the plasma assisted laser deposition technique. Low interfacial diffusion of iron at the 550°C growth temperature enables us to produce superconducting films with critical temperatures up to 83 K and critical currents up to ∼4 × 103 A/cm2 (40 K). Dependence of the superconducting properties of the Y-Ba-Cu-O films on the surface condition of the mirror finished stainless steel substrate has been studied. Critical temperature and critical current of the films have been improved by heat-treating the substrate and incorporating buffer layers. Variation of the critical current with the bend radii of the film is discussed.Keywords
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