Preparation of YBa2Cu3Oy Superconducting Thin Films on Metallic Substrates by Excimer Laser Ablation
- 1 May 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (5B) , L898-900
- https://doi.org/10.1143/jjap.30.l898
Abstract
Superconducting thin films of YBa2Cu3O y on a metallic substrate are prepared in situ by a pulsed laser ablation technique. The growth quality of the superconducting YBa2Cu3O y films has been compared on YSZ/Hastelloy substrates with or without a Pt underlayer. The zero-resistance temperature, T co, of 90.0 K and a transport critical current density, J c, greater than 4.0×104A/cm2 at zero field and 77.4 K were achieved when a YSZ/Pt/Hastelloy substrate was used. The insertion of a thin Pt layer at the boundary between YSZ and Hastelloy stabilized the YSZ buffer layer, resulting in the subsequent growth of a well-crystalline YBa2Cu3O y film.Keywords
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