Effects of junction resistance and counterelectrode material on point-contact tunneling into single- and polycrystalline YBa/sub 2/Cu/sub 3/O/sub 7-y/
Journal Article
·
· J. Low Temp. Phys.; (United States)
The effects of junction resistance and counterelectrode material on the results of point-contact tunneling studies into single- and polycrystalline YBa/sub 2/Cu/sub 3/O/sub 7-y/ are illustrated. Although reasonably symmetric I(V) curves predominantly indicate energy gap values /Delta/ /approx/ 20 meV, large asymmetries are often found for high-resistance junctions. Very low-resistance junctions show the expected behavior of pure metallic bridge and indicate /Delta/ /approx/ 25-30 meV.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5889270
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 71:5-6; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pure metallic bridge and point-contact tunneling into single- and polycrystal YBa/sub 2/Cu/sub 3/O/sub 7-y/
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Reproducible tunneling data on chemically etched single crystals of YBa sub 2 Cu sub 3 O sub 7
Conference
·
Thu Dec 31 23:00:00 EST 1987
·
OSTI ID:7006904
Point-contact tunneling in monophasic and polyphasic Y-Ba-Cu-O samples: Experiment and model
Journal Article
·
Tue Jan 31 23:00:00 EST 1989
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6552479
Reproducible tunneling data on chemically etched single crystals of YBa sub 2 Cu sub 3 O sub 7
Journal Article
·
Mon Aug 28 00:00:00 EDT 1989
· Physical Review Letters; (USA)
·
OSTI ID:5524950
Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC BRIDGES
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRODES
ELEMENTS
ENERGY GAP
ENERGY RANGE
EQUIPMENT
EV RANGE
FILMS
GOLD
JUNCTIONS
MATERIALS
MATERIALS TESTING
METALS
MILLI EV RANGE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
SINTERED MATERIALS
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNGSTEN
TUNNEL EFFECT
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC BRIDGES
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRODES
ELEMENTS
ENERGY GAP
ENERGY RANGE
EQUIPMENT
EV RANGE
FILMS
GOLD
JUNCTIONS
MATERIALS
MATERIALS TESTING
METALS
MILLI EV RANGE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
SINTERED MATERIALS
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNGSTEN
TUNNEL EFFECT
YTTRIUM COMPOUNDS
YTTRIUM OXIDES