Cubic phase in the Y-Ba-Cu-O system
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Corporate Research Laboratories, Eastman Kodak Company, Rochester, New York 14650-2011 (US)
A metastable phase in the Y-Ba-Cu-O system has been discovered. The phase is closely related to the high-{ital T}{sub {ital c}} superconductors and is characterized by a simple-cubic perovskite structure with a lattice parameter of 3.897 A. A composition Y:Ba:Cu:O=1.18:1.97:3.05:6.95 was determined using ion-backscattering spectrometry. The material is a black semiconductor and shows no transition to superconductivity down to 4 K. It is an excellent candidate for use in heteroepitaxial structures with the family of rare-earth--alkaline-earth--cuprate superconductors. The cubic phase was prepared as a thin film by excimer-laser ablation.
- OSTI ID:
- 5811212
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:13; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUBIC LATTICES
HIGH-TC SUPERCONDUCTORS
ION SPECTROSCOPY
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SEMICONDUCTOR MATERIALS
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUBIC LATTICES
HIGH-TC SUPERCONDUCTORS
ION SPECTROSCOPY
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SEMICONDUCTOR MATERIALS
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES