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Critical current densities and transport in superconducting YBa/sub 2/Cu/sub 3/O/sub 7//sub -//sub delta/ films made by electron beam coevaporation

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.98834· OSTI ID:6295189
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Thin films of the high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7//sub -//sub delta/ were prepared and characterized. The films made on SrTiO/sub 3/ showed epitaxial growth and high critical current densities in excess of 9 x 10/sup 4/ at 78 K and 2 x 10/sup 6/ at 4.2 K. Also, surface pinning in the parallel direction was found to be very high. The measurements put a lower limit on the depairing critical current density of 5 x 10/sup 7/ A/cm/sup 2/.
Research Organization:
Department of Applied Physics, Stanford University, Stanford, California 94305
OSTI ID:
6295189
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:11; ISSN APPLA
Country of Publication:
United States
Language:
English

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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
CHARGED-PARTICLE TRANSPORT
COATINGS
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DATA
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON COLLISIONS
EVAPORATION
EXPERIMENTAL DATA
FABRICATION
FILMS
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RADIATION TRANSPORT
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SURFACE COATING
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
VACUUM EVAPORATION
VAPOR DEPOSITED COATINGS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES