Magnetization and resistivity of Bi/sub 4/Ca/sub 3/Sr/sub 3/Cu/sub 4/O/sub 16/-type materials having two superconductivity onset temperatures
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Annealing Bi/sub 4/Ca/sub 3/Sr/sub 3/Cu/sub 4/O/sub 16/ in flowing oxygen at approx.885 /sup 0/C results in a material with two superconducting onsets, at about 85 and about 115 K. Magnetization data suggest that such materials consist of two kinds of regions in contact, even though only one phase is apparent in x-ray spectra. Resistivity data above the 85-K transition contain contributions from thermodynamic fluctuations and suggest that pair-breaking effects are small in the annealed materials.
- Research Organization:
- Corning Glass Works, Sullivan Park, Corning, New York 14831
- OSTI ID:
- 6743738
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:13; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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· Phys. Rev. B: Condens. Matter; (United States)
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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
ANNEALING
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GRAIN GROWTH
HEAT TREATMENTS
MAGNETIZATION
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GRAIN GROWTH
HEAT TREATMENTS
MAGNETIZATION
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE