Break-junction tunneling measurements of the high-T/sub c/ superconductor Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-//sub delta/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Current-voltage tunneling characteristics in a high-critical-temperature superconducting material containing predominately Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-//sub delta/ have been measured using the break-junction technique. Sharp gap structure was observed, with the largest superconductive energy gap measured to be ..delta.. = 19.5 +- 1 meV, assuming a superconductor-insulator-superconductor junction. This energy gap corresponds to 2..delta../k/sub B/T/sub c/ = 4.8 at T = 4 K, for a critical temperature of 93 K (midpoint of the resistive transition).
- Research Organization:
- National Bureau of Standards, Electromagnetic Technology Division, Boulder, Colorado 80303
- OSTI ID:
- 6422904
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:16; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY GAP
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TUNNEL EFFECT
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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY GAP
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TUNNEL EFFECT
YTTRIUM COMPOUNDS
YTTRIUM OXIDES