Synthesis of in-plane aligned a -axis YBa sub 2 Cu sub 3 O sub 7 minus. delta. thin films

Journal Article · Mon Nov 04 04:00:00 EST 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105991· OSTI ID:5125325

Young, K H; Sun, J Z ^[1]

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1. Superconductor Technologies Inc., 460 Ward Drive, Suite F, Santa Barbara, California (USA)

We report the successful synthesis of superconducting YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} (YBCO) (100) thin films with alignment of the in-plane {ital c} axis. These films were grown on single crystal NdGaO{sub 3} (110) substrates. The twofold symmetry of the substrate surface is believed to lead to anisotropic alignment of the in-plane {ital c} axis of the epitaxial YBCO (100) film. X-ray diffraction studies indicate that over 80% of the film grew epitaxially with the YBCO (100) perpendicular to the substrate surface, and YBCO (001) aligned along one pseudo-cubic axis of the NdGaO{sub 3}. The superconductivity onset of the film was measured to be 89 K by ac susceptibility.

• OSTI ID: 5125325
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:19; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DOMAIN STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
FILMS
LATTICE PARAMETERS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES