Laser deposition of biaxially textured yttria-stabilized zirconia buffer layers on polycrystalline metallic alloys for high critical current Y-Ba-Cu-O thin films

Journal Article · Mon Nov 02 00:00:00 EST 1992 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.108277· OSTI ID:7162894

Reade, R P; Berdahl, P; Russo, R E ^[1]; Garrison, S M ^[2]

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1. Lawrence Berkeley Laboratory, Energy and Environment Division, Berkeley, California 94720 (United States)
2. Conductus, Inc., Sunnyvale, California 94086 (United States)

Pulsed laser deposition of yttria-stabilized zirconia (YSZ) layers on polycrystalline metallic alloy substrates is used to produce an intermediate layer for YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} (YBCO) thin-film growth. The desired (001) YSZ texture is obtained at 1.0 mTorr oxygen pressure and 70 {degree}C. Significant improvement in (001) texturing is demonstrated by using an ion beam to assist growth. Argon-ion-assisted growth produces layers with alignment of the in-plane crystal axes in addition to the (001)-normal texture. Highly {ital c}-axis-oriented biaxially aligned YBCO thin films can be deposited on these layers, with {ital T}{sub {ital c}}({ital R}=0)=92 K and {ital J}{sub {ital c}} (77 K, {ital B}=0 T)=6{times}10{sup 5} A/cm{sup 2} and {ital J}{sub {ital c}} (77 K, 0.4 T)=8{times}10{sup 4} A/cm{sup 2}. With further improvement of the YSZ texture, the YBCO current-carrying capacity of films on polycrystalline metallic alloys may approach that of films on single-crystal substrates.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7162894
• Journal Information: Applied Physics Letters; (United States), Vol. 61:18; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
CRYSTAL GROWTH
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
ALIGNMENT
ALLOYS
BUFFERS
CRITICAL CURRENT
METALS
POLYCRYSTALS
SUPERCONDUCTING FILMS
TEXTURE
ZIRCONIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTALS
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
FILMS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
665412 - Superconducting Devices- (1992-)