Texturing of epitaxial in situ Y-Ba-Cu-O thin films on crystalline substrates
- Institute on Superconductivity, State University of New York at Buffalo, Bonner Hall, Amherst, New York 14260 (US)
The degree of texturing of the grains in epitaxial {ital in} {ital situ} Y-Ba-Cu-O films was studied by x-ray pole-figure measurements. These high {ital T}{sub {ital c}} and {ital J}{sub {ital c}} laser deposited films were all aligned with the {ital c} axis perpendicular to the substrate surface. It was found that films on SrTiO{sub 3}(001) and LaAlO{sub 3}(001) were totally aligned with the YBCO {ital a} axis parallel to the {l angle}100{r angle} direction on the substrate. For MgO(001), 4% of the grains are aligned in the {l angle}110{r angle} direction. For yttria stabilized zirconia (001), the {ital a} axes of the YBCO grains were distributed between the {l angle}100{r angle} and {l angle}110{r angle} directions on the substrate. These observations are consistent with the degree of lattice mismatch in the various crystal orientations.
- OSTI ID:
- 6227306
- Journal Information:
- Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 58:5; ISSN APPLA; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
DIFFRACTION
ELECTRIC CURRENTS
FILMS
GRAIN ORIENTATION
HIGH-TC SUPERCONDUCTORS
INTERFACES
MICROSTRUCTURE
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES