Y sub 1 Ba sub 2 Cu sub 3 O sub 7 minus x and LaAlO sub 3 composite thin films by off-axis magnetron sputtering
Journal Article
·
· Applied Physics Letters; (United States)
- Naval Research Laboratory, Washington, DC 20375 (United States)
Thin-film composites of co-sputtered Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} and LaAlO{sub 3} have been deposited by off-axis magnetron sputtering. Scanning electron microscopy (SEM) and x-ray diffraction studies suggest that LaAlO{sub 3} precipitates along the grain boundaries of the Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} grains. The normal state conductivity, transition temperature, and critical current density systematically decreased with increasing LaAlO{sub 3} composition, consistent with a decrease in the coupling between Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} grains. Inductive transition widths were only a few degrees wide for all LaAlO{sub 3} compositions, indicating homogeneous materials. Initial photoresponse measurements show bolometric behavior near {ital T}{sub {ital c}} and increased response for greater LaAlO{sub 3} compositions.
- OSTI ID:
- 5425720
- Journal Information:
- Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 60:3; ISSN APPLA; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
BOLOMETERS
CHALCOGENIDES
COMPOSITE MATERIALS
COPPER COMPOUNDS
CRITICAL CURRENT
CUPRATES
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MATERIALS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
BOLOMETERS
CHALCOGENIDES
COMPOSITE MATERIALS
COPPER COMPOUNDS
CRITICAL CURRENT
CUPRATES
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MATERIALS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES