Effect of substrate-twin-induced microstructure on transport properties of epitaxial Tl sub 2 Ba sub 2 CaCu sub 2 O sub x films in a magnetic field
Conference
·
OSTI ID:7228895
- Argonne National Lab., IL (United States)
- Superconducting Technology, Inc., Santa Barbara, CA (United States)
The role of substrate-induced microstructure on transport properties in c-axis oriented epitaxial Tl{sub 2}Ba{sub 2}CaCu{sub 2}O{sub x} films grown on LaAlO{sub 3} and SrTiO{sub 3} has been studied. For a magnetic field parallel to the Cu-0 planes, resistivity and the critical current density, J{sub c}, have been measured as a function of angle {theta} between the applied field and the direction of transport current. Resistivity dips and enhancement of the critical current density, J{sub c}, were observed for magnetic fields applied parallel to the substrate twins in LaAlO{sub 3} in high fields ({ge} 2 T). Meanwhile for films on SrTiO{sub 3}, resistivity and J{sub c} were Lorentz-force independent.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7228895
- Report Number(s):
- ANL/CP-77431; CONF-920802-18; ON: DE93000605
- Resource Relation:
- Conference: Applied superconductivity conference, Chicago, IL (United States), 23-28 Aug 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BARIUM OXIDES
SUPERCONDUCTIVITY
CALCIUM OXIDES
COPPER OXIDES
THALLIUM OXIDES
ALUMINATES
CRITICAL CURRENT
CURRENT DENSITY
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
MAGNETIC FIELDS
ORIENTATION
STRONTIUM TITANATES
SUBSTRATES
SUPERCONDUCTING FILMS
TWINNING
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILMS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies
BARIUM OXIDES
SUPERCONDUCTIVITY
CALCIUM OXIDES
COPPER OXIDES
THALLIUM OXIDES
ALUMINATES
CRITICAL CURRENT
CURRENT DENSITY
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
MAGNETIC FIELDS
ORIENTATION
STRONTIUM TITANATES
SUBSTRATES
SUPERCONDUCTING FILMS
TWINNING
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILMS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies