Millimeter-wave surface resistance of laser-ablated YBa2Cu3O7−δ superconducting films
- 3 September 1990
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (10) , 1058-1060
- https://doi.org/10.1063/1.104281
Abstract
We have measured the millimeter‐wave surface resistance of YBa2Cu3O7−δ superconducting films in a gold‐plated copper host cavity at 58.6 GHz between 25 and 300 K. High quality laser‐ablated films of 1.2 μm thickness were deposited on SrTiO3 and LaGaO3 substrates. Their transition temperatures (Tc’s) were 90.0 and 88.9 K, with a surface resistance at 70 K of 82 and 116 mΩ, respectively. These values are better than the values for the gold‐plated cavity at the same temperature and frequency.Keywords
This publication has 6 references indexed in Scilit:
- High-frequency resistance of the YBaCuO ceramicsPhysica C: Superconductivity and its Applications, 1989
- Millimeter wave surface resistance of epitaxially grown YBa2Cu3O7−x thin filmsApplied Physics Letters, 1989
- Epitaxial growth of YBa2Cu3O7−x thin films by a laser evaporation processApplied Physics Letters, 1988
- As-deposited high T c and J c superconducting thin films made at low temperaturesApplied Physics Letters, 1988
- Millimeter-wave surface resistance measurements in highly orientedthin filmsPhysical Review B, 1988
- Microwave surface resistance of YBa2Cu3O6.9 superconducting filmsApplied Physics Letters, 1988