Gd sup 3+ exchange interaction as measured by NMR in hydrogen-doped GdBa sub 2 Cu sub 3 O sub 7 H sub 1. 55
Journal Article
·
· Physical Review (Section) B: Condensed Matter; (USA)
- Institut d'Electronique Fondamentale, Batiment 220, Universite Paris Sud, F-91405 Orsay CEDEX, France (FR)
- Laboratoire d'Hydrogene et Defauts dans les Metaux, Btiment 350, Universite Paris Sud, F-91405 Orsay CEDEX, France (FR)
Proton NMR in nonsuperconducting GdBa{sub 2}Cu{sub 3}O{sub 7}H{sub 1.55} was measured at liquid-helium temperature by a spin-echo method. The negative shift of the resonance spectrum was found to be proportional to the dc magnetic field. This shift is shown to arise from the demagnetizing field due to a canted spin structure. The Gd exchange parameter is estimated to be {ital J}{approx equal}0.05 K, showing that the exchange energy is higher than the dipole one. Hydrogen doping has no effect on the gadolinium ordering temperature.
- OSTI ID:
- 5067902
- Journal Information:
- Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:16; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL MODELS
EXCHANGE INTERACTIONS
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
HEISENBERG MODEL
HYDROGEN 1
HYDROGEN ADDITIONS
HYDROGEN ISOTOPES
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATHEMATICAL MODELS
NEEL TEMPERATURE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RELAXATION
RESONANCE
SPIN ECHO
SPIN-LATTICE RELAXATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL MODELS
EXCHANGE INTERACTIONS
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
HEISENBERG MODEL
HYDROGEN 1
HYDROGEN ADDITIONS
HYDROGEN ISOTOPES
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATHEMATICAL MODELS
NEEL TEMPERATURE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RELAXATION
RESONANCE
SPIN ECHO
SPIN-LATTICE RELAXATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE