Effect of HCl on the normal magnetic susceptibility of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Normal static magnetic-susceptibility measurements have been carried out for the high-T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ which was annealed at temperatures between 100 and 500 /sup 0/C in the presence of HCl gas at a pressure of 100 Torr. The magnetic susceptibility data strongly depend on the change in the proportion of Cu/sup 2+/ to Cu/sup 3+/ during the reaction of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ with HCl. The Curie-Weiss susceptibility arises from the localized Cu/sup 2+/ spins and the Pauli paramagnetic susceptibility arises from conduction electrons in Cu/sup 3+/ states. These data can be interpreted in terms of the two-dimensional ordering of oxygen-vacancy sites in the one-dimensional chains in CuO layers. The one-dimensional chains have a stoichiometry of Cu/sup 3 +//sub 1-//sub x/Cu/sup 2 +//sub x/O/sub 1-//sub x//sub /2/ with delta = x/2.
- Research Organization:
- Department of Physics, State University of New York at Binghamton, Binghamton, New York 13901
- OSTI ID:
- 5369650
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:10; 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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CURIE-WEISS LAW
ELEMENTS
HEAT TREATMENTS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LOW PRESSURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARAMAGNETISM
PAULI PRINCIPLE
PHYSICAL PROPERTIES
POINT DEFECTS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
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
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CURIE-WEISS LAW
ELEMENTS
HEAT TREATMENTS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LOW PRESSURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARAMAGNETISM
PAULI PRINCIPLE
PHYSICAL PROPERTIES
POINT DEFECTS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES