Millimeter-wave surface resistance of laser-ablated YBa sub 2 Cu sub 3 O sub 7 minus. delta. superconducting films

Journal Article · Mon Sep 03 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.104281· OSTI ID:6483496

Miranda, F A; Gordon, W L ^[1]; Bhasin, K B; Warner, J D ^[2]

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1. Department of Physics, Case Western Reserve University, Cleveland, OH (USA)
2. National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH (USA)

We have measured the millimeter-wave surface resistance of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} 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 {mu}m thickness were deposited on SrTiO{sub 3} and LaGaO{sub 3} substrates. Their transition temperatures ({Tc}'s) were 90.0 and 88.9 K, with a surface resistance at 70 K of 82 and 116 m{Omega}, respectively. These values are better than the values for the gold-plated cavity at the same temperature and frequency.

• OSTI ID: 6483496
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:10; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ABLATION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CAVITY RESONATORS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY LOSSES
EQUIPMENT
FILMS
HIGH-TC SUPERCONDUCTORS
LOSSES
MICROWAVE RADIATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWER LOSSES
RADIATIONS
RESONATORS
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES