Highly oriented superconducting thin films derived from the sol-gel process

Journal Article · Mon Jul 11 04:00:00 EDT 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.100579· OSTI ID:7201836

Kramer, S A; Kordas, G; McMillan, J; Hilton, G C; Van Harligen, D J

Highly oriented YBa/sub 2/Cu/sub 3/O/sub 6+//sub x/ superconducting thin films have been developed via sol-gel processing. Film deposition involved spin coating a ''partially hydrolyzed'' metal-alkoxide stock solution onto single-crystal (100) SrTiO/sub 3/ substrates. Although scanning electron microscopy revealed the film consisted of oriented polycrystallites, from the broad statistical x-ray diffraction data the 1000 A film ''appeared'' to be single crystal with moderate mosaic spread (i.e., full width at half-maximum was 0.3/sup 0/ in theta at a 2theta of 55/sup 0/). No twinning of the crystal was found in any of the three orthogonal directions (2theta, phi, chi). The onset temperature T/sub c/ for the film was 55 K while the critical current density J/sub c/ was found to be 10/sup 2/ A/cm/sup 2/.

• Research Organization: Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois at Urbana--Champaign, 105 South Goodwin, Urbana, Illinois 61801
• OSTI ID: 7201836
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 53:2; ISSN APPLA
• 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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COATINGS
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
DATA
DEPOSITION
DIFFRACTION
ELECTRIC CURRENTS
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FABRICATION
FILMS
INFORMATION
MICROSCOPY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SPIN-ON COATING
SPIN-ON COATINGS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
SURFACE COATING
THERMODYNAMIC PROPERTIES
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES