Preparation of superconducting YBa/sub 2/Cu/sub 3/Ox thin films by oxygen annealing of multilayer metal films
Technical Report
·
OSTI ID:5373148
Superconducting thin films consisting perdominantly of yttrium barium copper oxide have been prepared by oxygen annealing of metal films formed by using electron-beam evaporation to deposit a three-layer sequence of Cu, Ba, and Y in nominally stoichiometric proportions, then repeating the sequence five times. For the best superconducting films, which were prepared on yttria-stabilized cubic zirconia substrates, the onset of superconductivity occurred at 94 K and zero resistivity was observed at 72 K. For the best films prepared on sapphire substrates, the corresponding temperatures were 95 and 40 K.
- Research Organization:
- Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab.
- OSTI ID:
- 5373148
- Report Number(s):
- AD-A-187547/5/XAB; JA-6021
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORUNDUM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON BEAMS
EVAPORATION
FILMS
HEAT TREATMENTS
HIGH TEMPERATURE
LAYERS
LEPTON BEAMS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SAPPHIRE
STOICHIOMETRY
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360603* -- Materials-- Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORUNDUM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON BEAMS
EVAPORATION
FILMS
HEAT TREATMENTS
HIGH TEMPERATURE
LAYERS
LEPTON BEAMS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SAPPHIRE
STOICHIOMETRY
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES