In-plane epitaxial alignment of YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]] films grown on silver crystals and buffer layers

Journal Article · Mon Apr 12 04:00:00 EDT 1993 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.109565· OSTI ID:6738806

Budai, J D ^[1]; Young, R T; Chao, B S ^[2]

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1. Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831 (United States)
2. Energy Conversion Devices Inc., Troy, Michigan 48084 (United States)

Superconducting YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]] (YBCO) films were grown by laser ablation on Ag(001), Ag(110), and Ag(111) single-crystal surfaces. X-ray diffraction measurements showed that, in all cases, the films were aligned with specific in-plane epitaxial orientation with respect to the crystallographic axes of the substrate. The observed orientations were consistent with predictions of near-coincident site lattice models of the YBCO-Ag interface. This technique for achieving three-dimensional film alignment was extended to include a Ag epitaxial buffer layer on mica in place of a bulk Ag crystal. In-plane epitaxial alignment on metal substrates and buffer layers has important consequences in practical applications for inhibiting weak-link behavior caused by high-angle grain boundaries.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6738806
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 62:15; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ABLATION
ALIGNMENT
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BUFFERS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EPITAXY
FILMS
GRAIN BOUNDARIES
HIGH-TC SUPERCONDUCTORS
LASER RADIATION
METALS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SCATTERING
SILVER
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES