Neutron scattering experiments on Yb X Cu sub 4 and Er X Cu sub 4 ( X =Au, Pd, and Ag)
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Institut Laue-Langevin, Grenoble, France (FR)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
- Argonne National Laboratory, Argonne, Illinois 60439 (USA)
Temperature-dependent neutron scattering experiments with incident energies in the range 3--50 meV have been performed on polycrystalline samples of the heavy-electron system Yb{ital X}Cu{sub 4}, as well as the stable 4{ital f}-moment compounds Er{ital X}Cu{sub 4} and the nonmagnetic reference materials Lu{ital X}Cu{sub 4}, with {ital X}=Au, Pd, and Ag. The quasielastic linewidth of the Yb{ital X}Cu{sub 4} compounds is determined as a function of temperature. For YbAuCu{sub 4} a quantitative crystal-field analysis is applied to the observed inelastic response, while the data for the strongly 4{ital f}-delocalized compound YbAgCu{sub 4} are discussed in terms of a possible crystal-field interpretation and various theoretical models for heavy-electron systems.
- OSTI ID:
- 7010454
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:4; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COHERENT SCATTERING
COPPER ALLOYS
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC SPECIFIC HEAT
ELECTRONIC STRUCTURE
ENERGY RANGE
ERBIUM ALLOYS
EV RANGE
GOLD ALLOYS
HYBRIDIZATION
INTERMETALLIC COMPOUNDS
MILLI EV RANGE
NEUTRON DIFFRACTION
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
POLYCRYSTALS
RARE EARTH ALLOYS
SCATTERING
SILVER ALLOYS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VERY LOW TEMPERATURE
YTTERBIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COHERENT SCATTERING
COPPER ALLOYS
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC SPECIFIC HEAT
ELECTRONIC STRUCTURE
ENERGY RANGE
ERBIUM ALLOYS
EV RANGE
GOLD ALLOYS
HYBRIDIZATION
INTERMETALLIC COMPOUNDS
MILLI EV RANGE
NEUTRON DIFFRACTION
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
POLYCRYSTALS
RARE EARTH ALLOYS
SCATTERING
SILVER ALLOYS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VERY LOW TEMPERATURE
YTTERBIUM ALLOYS