Effect of noble metal buffer layers on superconducting YBa/sub 2/Cu/sub 3/O/sub 7/ thin films
Journal Article
·
· Appl. Phys. Lett.; (United States)
Superconducting YBa/sub 2/Cu/sub 3/O/sub 7/ thin films have been prepared by using a magnetron sputtering system in the single-source mode. Samples deposited on (100) single-crystal MgO with and without a Au buffer layer all show high transition temperatures (82--87 K). The use of a Au buffer layer significantly improves the superconducting properties, particularly the Meissner effect and critical current density (3.3 x 10/sup 6/ A/cm/sup 2/ at T = 2 K and 3.5 x 10/sup 4/ A/cm/sup 2/ at T = 77 K). The Au films remain metallic after high-temperature annealing in an oxygen atmosphere. We propose to use Au buffer layers as current shunts to protect superconducting films and devices.
- Research Organization:
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218
- OSTI ID:
- 5681399
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:25; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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OSTI ID:5291768
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·
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Preparation and properties of YBa[sub 2]Cu[sub 3]O[sub 7] thin films on sapphire with Yttria-stabilized zirconia buffer layer
Journal Article
·
Mon Aug 01 00:00:00 EDT 1994
· Journal of Superconductivity; (United States)
·
OSTI ID:7037030
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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COATINGS
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FABRICATION
FILMS
GOLD
HEAT TREATMENTS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETRONS
MEISSNER-OCHSENFELD EFFECT
METALS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
VAPOR DEPOSITED COATINGS
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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COATINGS
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FABRICATION
FILMS
GOLD
HEAT TREATMENTS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETRONS
MEISSNER-OCHSENFELD EFFECT
METALS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
VAPOR DEPOSITED COATINGS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES