Difference of variation of unit cell volume V and T/sub c/ with oxygen content in YBa/sub 2/Cu/sub 3/O/sub 7-chi/ and LaBa/sub 2/Cu/sub 3/O/sub 7+chi/
Journal Article
·
· Modern Physics Letters B; (USA)
- Academia Sinica, Beijing, BJ (China). Inst. of Physics
In YBa/sub 2/Cu/sub 3/O/sub 7-chi/, the oxygen content is the higher is the T/sub c/, the smaller is the lattice parameter c and the unit cell volume V. But in LaBa/sub 2/Cu/sub 3/O/sub 7+chi/ the less the oxygen content is, the higher the T/sub c/, the larger are c and V. These may be due to oxygen content being less than 7.0 in YBa/sub 2/Cu/sub 3/O/sub 7-chi/ and more than 7.0 in LaBa/sub 2/Cu/sub 3/O/sub 7+chi/. These results give some informations regarding superconducting mechanism and show that the one-dimensional chain plays an important role.
- OSTI ID:
- 5706607
- Journal Information:
- Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Journal Issue: 03n04 Vol. 2:3; ISSN MPLBE; ISSN 0217-9849
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
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
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
HIGH TEMPERATURE
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LATTICE PARAMETERS
NONMETALS
ONE-DIMENSIONAL CALCULATIONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VARIATIONS
VOLUME
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
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
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
HIGH TEMPERATURE
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LATTICE PARAMETERS
NONMETALS
ONE-DIMENSIONAL CALCULATIONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VARIATIONS
VOLUME
YTTRIUM COMPOUNDS
YTTRIUM OXIDES