Critical current density enhancement in YBa2Cu3O6.8 films on buffered metallic substrates
- 18 March 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 58 (11), 1202-1204
- https://doi.org/10.1063/1.104364
Abstract
A transition buffer, consisting of subbuffers grown at different temperatures, was used to enhance the crystallinity and the transport properties of YBa2Cu3O6.8 (YBCO) films on metallic substrates. Films were fabricated using in situ laser deposition and were strongly c‐axis oriented. Critical temperature of 87 K and critical current density of 3×104 A/cm2 at 77 K were obtained for a 0.5‐μm‐thick YBCO film with a 0.2 μm transition yttrium‐ stabilized ZrO2 buffer layer. Also, the magnetic field dependence of Jc could be enhanced by using Pt‐coated metallic substrates.Keywords
This publication has 5 references indexed in Scilit:
- Superconducting YBa2Cu3O6.8 films on metallic substrates using in situ laser depositionApplied Physics Letters, 1990
- Flexible stainless steel foil as a substrate for superconducting Y-Ba-Cu-O filmsJournal of Materials Research, 1990
- Superconducting properties of Ba2YCu3O7−x thin films prepared by chemical vapor deposition on SrTiO3 and a metal substrateApplied Physics Letters, 1989
- Temperature and field dependence of the critical current densities of Y-Ba-Cu-O filmsApplied Physics Letters, 1988
- Origin of superconductive glassy state and extrinsic critical currents in high-oxidesPhysical Review Letters, 1987