YBaCuFeO/sub 5+delta/: a novel oxygen-deficient perovskite with a layer structure
Journal Article
·
· J. Solid State Chem.; (United States)
A novel ordered oxygen-deficient perovskite with a layer structure, YBaCuFeO/sub 5+delta/, was isolated. It was characterized by chemical analysis, Moessbauer spectroscopy, and magnetic susceptibility measurements versus temperature. Its structure was determined by powder neutron diffraction. It crystallizes in the tetragonal system with a = 3.867 A approx. a/sub p/ and c = 7.656 A approx. 2a/sub p/. The structure can be described as formed of (CuFeO/sub 5/)infinity double layers of corner-sharing CuO/sub 5/ and FeO/sub 5/ pyramids, perpendicular to c. The cohesion between the layers is ensured by yttrium planes whereas the barium ions are located inside the layers. The relationships of this structure with those of YBa/sub 2/Cu/sub 3/O/sub 7-delta/ and LaBa/sub 2/Cu/sub 3/O/sub 7-delta/ are discussed.
- Research Organization:
- Universite de Caen (France)
- OSTI ID:
- 7007112
- Journal Information:
- J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 73:2; ISSN JSSCB
- 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
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
IRON COMPOUNDS
IRON OXIDES
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MOESSBAUER EFFECT
NEUTRON DIFFRACTION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
SCATTERING
STRUCTURAL CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
IRON COMPOUNDS
IRON OXIDES
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MOESSBAUER EFFECT
NEUTRON DIFFRACTION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
SCATTERING
STRUCTURAL CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES