Electrical resistivity and magnetic susceptibility in BiCaSrCu/sub 2/O/sub y/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Electrical-resistivity and static magnetic-susceptibility measurements were performed on a new type of high-T/sub c/ superconductor BiCaSrCu/sub 2/O/sub y/ (yapprox. =6.4) in the temperature range 70 Kless than or equal toT< = 310 K. The stoichiometry of this compound is described as BiCaSr(Cu/sup 2+//sub 0.1/Cu/sup 3+//sub 0.9/)/sub 2/O/sub 6.4/. The electrical resistivity shows superconductivity below T/sub c/ = 73.9 K, and undergoes a steplike change at 110 K, suggesting a high-T/sub c/ phase. The linear temperature dependence of the resistivity is observed in the temperature range 130 Kless than or equal toTless than or equal to254 K. The susceptibility shows a Curie-Weiss behavior with FTHETA = -113.1 K and P/sub e//sub f//sub f/ = 0.56..mu../sub B//mol Cu, because of antiferromagnetic exchange interaction between localized Cu/sup 2+/ spins. From a temperature-independent susceptibility, the electronic specific heat ..gamma../sub el/ and the density of states D(E/sub F/) are determined as ..gamma../sub el/ = 12.0 mJ/mol Cu K/sup 2/ and D(E/sub F/) = 5.09 states/eV Cu atom.
- Research Organization:
- Department of Physics, State University of New York at Binghamton, Binghamton, New York 13901
- OSTI ID:
- 6926776
- 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
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC SPECIFIC HEAT
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
INFORMATION
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECIFIC HEAT
STOICHIOMETRY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC SPECIFIC HEAT
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
INFORMATION
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECIFIC HEAT
STOICHIOMETRY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE