Stability of the YBa sub 2 Cu sub 3 O sub 7 minus sub x --Si interface
Journal Article
·
· Journal of Materials Research; (United States)
- Department of Physics and Center for Superconductivity Research, The University of Maryland, College Park, Maryland (USA)
Electron spectroscopies were used to study the reaction of Si and SiO{sub 2} layers with high-{ital T}{sub {ital c}} superconductors at room temperature and under annealing conditions. The superconductor samples include YBa{sub 2}Cu{sub 3}O{sub 7} ceramic and thin film samples as well as GdBa{sub 2}Cu{sub 3}O{sub 7} ceramic samples. The results show that the Si overlayers withdraw oxygen from the superconductor and form an interfacial layer of Si oxide at room temperature. Annealing increases the reaction rate so that films as thick as 30 A become completely oxidized following annealing above approximately 100 {degree}C. Ba segregates to the surface from the bulk after Si oxidation when annealed at temperatures higher than 200 {degree}C, while the rare earth element (Gd) does not segregate.
- OSTI ID:
- 5480853
- Journal Information:
- Journal of Materials Research; (United States), Journal Name: Journal of Materials Research; (United States) Vol. 6:8; ISSN JMREE; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cleaning of YBa sub 2 Cu sub 3 O sub 7 minus x surfaces by thermal oxidation treatments
Sputter deposition of YBa sub 2 Cu sub 3 O sub 7 minus x films on Si at 500 degree C with conducting metallic oxide as a buffer layer
Electrochemical behavior of YBa/sub 2/Cu/sub 3/O/sub 7/
Conference
·
Wed Jan 24 23:00:00 EST 1990
· AIP Conference Proceedings (American Institute of Physics); (USA)
·
OSTI ID:6552735
Sputter deposition of YBa sub 2 Cu sub 3 O sub 7 minus x films on Si at 500 degree C with conducting metallic oxide as a buffer layer
Journal Article
·
Mon Jul 16 00:00:00 EDT 1990
· Applied Physics Letters; (USA)
·
OSTI ID:7073923
Electrochemical behavior of YBa/sub 2/Cu/sub 3/O/sub 7/
Journal Article
·
Thu Dec 31 23:00:00 EST 1987
· Modern Physics Letters B; (USA)
·
OSTI ID:5732917
Related Subjects
36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALKALINE EARTH METAL COMPOUNDS
AMBIENT TEMPERATURE
AMINES
AMMONIUM COMPOUNDS
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTRON SPECTROSCOPY
ELEMENTS
HEAT TREATMENTS
HIGH-TC SUPERCONDUCTORS
INTERFACES
MINERALS
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY COMPOUNDS
SEMIMETALS
SILICA
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
STABILITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALKALINE EARTH METAL COMPOUNDS
AMBIENT TEMPERATURE
AMINES
AMMONIUM COMPOUNDS
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTRON SPECTROSCOPY
ELEMENTS
HEAT TREATMENTS
HIGH-TC SUPERCONDUCTORS
INTERFACES
MINERALS
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY COMPOUNDS
SEMIMETALS
SILICA
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
STABILITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES