Large differences of critical current density in thin films of superconducting YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/
Journal Article
·
· J. Appl. Phys.; (United States)
Thin films of YBa/sub 2/ Cu/sub 3/ O/sub 7-//sub x/ with three types of c-axis alignment have been prepared by evaporation: unaligned films on oxidized silicon with zero-resistance transition temperatures as high as 88 K (the highest value reported for thin films of this superconductor on this substrate), films with regions aligned along each of the three <100> directions of the (100) SrTiO/sub 3/ substrate, and films with the c-axis perpendicular to the (100) SrTiO/sub 3/ plane. Typical values of critical current density (A cm /sup -2/ ) at 77 K are 10/sup 2/ , 3 x 10/sup 4/ , and 10/sup 6/, respectively. The temperature dependence of the critical current density is similar for the three types of films; it increases linearly with decreasing temperature, which is suggestive of a flux creep-limited model.
- Research Organization:
- GE Research and Development Center, Schenectady, New York 12301
- OSTI ID:
- 6336882
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 65:12; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Sun Oct 25 23:00:00 EST 1987
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Journal Article
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Mon Aug 28 00:00:00 EDT 1989
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Narrow tracks in YBa/sub 2/Cu/sub 3/O/sub 7/ thin films defined by laser ablation
Journal Article
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Sun Jan 01 23:00:00 EST 1989
· Appl. Phys. Lett.; (United States)
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Related Subjects
36 MATERIALS SCIENCE
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
CURRENT DENSITY
CURRENTS
DIFFRACTION
ELECTRIC CURRENTS
FILMS
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SILICON COMPOUNDS
SILICON OXIDES
SUBSTRATES
SUPERCONDUCTING FILMS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VAPOR DEPOSITED COATINGS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
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
CURRENT DENSITY
CURRENTS
DIFFRACTION
ELECTRIC CURRENTS
FILMS
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SILICON COMPOUNDS
SILICON OXIDES
SUBSTRATES
SUPERCONDUCTING FILMS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VAPOR DEPOSITED COATINGS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES