Tunneling study on the electron-doped superconductor Nd sub 1. 85 Ce sub 0. 15 CuO sub 4 minus y
Journal Article
·
· Physical Review (Section) B: Condensed Matter; (USA)
- Department of Physics, Aoyama-Gakuin University, 6-16-1, Chitosedai, Setagaya, Tokyo 157, Japan (JP)
From tunneling measurements for the electron-doped cuprate oxide superconductor Nd{sub 2{minus}{ital x}}Ce{sub {ital x}}CuO{sub 4{minus}{ital y}}, we obtained the superconducting energy gap of 2{Delta}=8 meV with {ital T}{sub {ital c}}=17--18 K. This result leads to the value of 2{Delta}/{ital kT}{sub {ital c}}=5.2--5.5, which is close to or somewhat larger than that for La{sub 2{minus}{ital x}}Sr{sub {ital x}}CuO{sub 4} but slightly smaller than that for Bi{sub 2}Sr{sub 2}CuO{sub {ital y}}.
- OSTI ID:
- 5375168
- Journal Information:
- Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:10; ISSN 0163-1829; 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
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ENERGY GAP
FERMIONS
LEPTONS
MATERIALS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TUNNEL EFFECT
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ENERGY GAP
FERMIONS
LEPTONS
MATERIALS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TUNNEL EFFECT