In situ pulsed laser deposition of superconducting Ba sub 1 minus x K sub x BiO sub 3 thin films

Journal Article · Mon Oct 07 04:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106184· OSTI ID:5237500

Moon, B M; Platt, C E; Schweinfurth, R A; Van Harlingen, D J ^[1]

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1. Science and Technology Center for Superconductivity Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois (USA)

We have grown superconducting thin films of Ba{sub 1{minus}{ital x}}K{sub {ital x}}BiO{sub 3} by {ital in} {ital situ} pulsed laser deposition from a stoichiometric ({ital x}=0.4) target. The best films exhibit an onset transition temperature of 28 K and have zero resistance as high as 26 K. Films are single phase and highly oriented in the (100) or (110) direction on MgO, SrTiO{sub 3}, LaAlO{sub 3}, and Al{sub 2}O{sub 3} substrates. We have observed high-quality normal-insulator-superconductor and superconductor-insulator-superconductor quasiparticle tunneling characteristics with the films.

• OSTI ID: 5237500
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:15; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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