Conduction and Hall measurements of Ba/sub 2/YCu/sub 3/O/sub 6+//sub delta/ films at high temperatures: The role of oxygen
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We report new resistance and Hall effect measurements for Ba/sub 2/YCu/sub 3/O/sub 6+//sub delta/. The data were taken at temperatures up to 1100 K, and at various oxygen partial pressures. For T>700 K, the resistivity shows an activated temperature dependence, and a square-root pressure dependence. Measurements of oxygen content in the literature, however, show a dependence on pressure that is much weaker than square root. For the measurements of resistivity and oxygen content to be consistent, the mechanism for conduction at high temperatures is likely to be hopping. Our experiments are the first to show that the linear temperature dependence of the effective Hall carrier density persists up to approx. =700 K and then drops.
- Research Organization:
- IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598
- OSTI ID:
- 6978827
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:4; 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
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
FILMS
HALL EFFECT
HIGH TEMPERATURE
INFORMATION
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTITY RATIO
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
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
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
FILMS
HALL EFFECT
HIGH TEMPERATURE
INFORMATION
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTITY RATIO
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES