Evidence of antiferromagnetic order in the green phases R sub 2 BaCuO sub 5 (R = Dy, Y, and Yb)
Journal Article
·
· Journal of Solid State Chemistry; (USA)
- Universidad Complutense, Madrid (Spain)
Magnetic susceptibility measurements between 4.2 and 300 K for R{sub 2}BaCuO{sub 5} compounds (R = Dy, Y and Yb), also called green phases, reveal the existence of antiferromagnetic ordering in the copper sublattice around 30 K. At lower temperatures {chi} vs. T plots show in all cases the existence of a sharp maximum, which can be attributed to the onset of antiferromagnetic ordering in the rare earth sublattice, probably induced by the polarization of Cu{sup +2} ions. Experimental magnetic moments estimated from the Curie-Weiss region generally agree with the theoretical values expected for thee R{sup +3} ions. High-resolution transmission electron microscopy and electron diffraction experiments confirm the earlier proposed structures for the R{sub 2}BaCuO{sub 5}, and show the existence of a well ordered material.
- OSTI ID:
- 6115703
- Journal Information:
- Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 89:2; ISSN 0022-4596; 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
DATA
DIFFRACTION
DYSPROSIUM COMPOUNDS
DYSPROSIUM OXIDES
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
INFORMATION
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
MICROSCOPY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SCATTERING
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES
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
DATA
DIFFRACTION
DYSPROSIUM COMPOUNDS
DYSPROSIUM OXIDES
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
INFORMATION
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
MICROSCOPY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SCATTERING
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES