Superconducting properties of Ba sub 2 YCu sub 3 O sub 7 minus x thin films prepared by chemical vapor deposition on SrTiO sub 3 and a metal substrate
- Fujikura Ltd., 1-5-1 Kiba Koto-ku, Tokyo 135, Japan (JP)
Superconducting Ba{sub 2}YCu{sub 3}O{sub 7{minus}{ital x}} thin films were prepared by chemical vapor deposition using {beta}-diketonate chelates on SrTiO{sub 3} single crystalline substrates, metal substrates, and metal substrates with a polycrystalline SrTiO{sub 3} buffer. The temperatures of complete superconducting transitions were observed at 89, 81, and 84 K, respectively. Reduced critical current density of the film on a single crystalline substrate in magnetic fields up to 600 mT at 77 K remained one or two orders of magnitude higher than that of powder metallurgical processed specimens. According to x-ray diffraction patterns, the existence of a well-oriented orthorhombic Ba{sub 2}YCu{sub 3}O{sub 7{minus}{ital x}} structure has been confirmed in all specimens.
- OSTI ID:
- 5486209
- Journal Information:
- Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 55:15; 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
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
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
DATA
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FABRICATION
FILMS
INFORMATION
LOW TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SURFACE COATING
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES