Specific heat near T/sub N/ in (Pr, Nd, Sm, Gd, and Dy)Ba/sub 2/Cu/sub 3/O/sub 7/: Evidence for spin-exchange-driven ordering
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Magnetic ordering at 2.2 K has been reported for GdBa/sub 2/CU/sub 3/O/sub 7/. In order to characterize the relevant magnetic interaction we have synthesized and measured the specific heat of polycrystalline RBa/sub 2/Cu/sub 3/O/sub 7/, where R = Pr, Nd, Sm, Gd, and Dy. The ordering temperatures are found to vary systematically with the de Gennes factor, suggesting the dominance of spin-spin exchange over dipolar energies for these compounds. The field dependence of the specific-heat peak for DyBa/sub 2/Cu/sub 3/O/sub 7/ implies the order is of antiferromagnetic nature.
- Research Organization:
- AT and T Bell Laboratories, Murray Hill, New Jersey 07974
- OSTI ID:
- 5798225
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:13; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Sun Jan 31 23:00:00 EST 1988
· Phys. Rev. B: Condens. Matter; (United States)
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OSTI ID:5530764
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Journal Article
·
Tue Oct 05 00:00:00 EDT 1993
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·
OSTI ID:83261
Crystal-field interaction in the Gd/sub x/Eu/sub 1-//sub x/Ba/sub 2/Cu/sub 3/OR/sub 7-//sub delta/ superconductors
Journal Article
·
Fri Jul 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:7202897
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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DYSPROSIUM COMPOUNDS
DYSPROSIUM OXIDES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
MAGNETIC PROPERTIES
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
SPECIFIC HEAT
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
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
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DYSPROSIUM COMPOUNDS
DYSPROSIUM OXIDES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
MAGNETIC PROPERTIES
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
SPECIFIC HEAT
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE