Indirect evidence for exchange modification of the conduction bands in RAl/sub 2/ compounds
Journal Article
·
· Phys. Rev., B: Condens. Matter; (United States)
The self-polarization contribution to the total hyperfine field at a rare-earth nucleus should be directly correlated with a variation in the hyperfine splitting parameter as seen by the 4f electron of the rare-earth ion. Comparison of data on the hyperfine field in ordered ErAl/sub 2/ and DyAl/sub 2/ with paramagnetic resonance results for Er and Dy in ScAl/sub 2/, LuAl/sub 2/, and YbAl/sub 2/ suggests that the self-polarization effect is large in the ferromagnetic phase but negligible in the paramagnetic phase. Analysis of available data on some Pr and Tm compounds also suggests self-polarization effects to be negligible in the paramagnetic phase. We conclude that modification of the conduction-electron band structure due to exchange splitting effects may play an important role in the rare-earth--Al/sub 2/ compounds.
- Research Organization:
- Physics Department, University of Miami, Coral Gables, Florida 33124
- OSTI ID:
- 6007173
- Journal Information:
- Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 19:11; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Thu May 01 00:00:00 EDT 1980
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OSTI ID:5489526
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Thesis/Dissertation
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Fri May 01 00:00:00 EDT 1970
·
OSTI ID:4117872
$sup 160$Dy and $sup 166$Er Moessbauer studies of concentrated and dilute rare earth dihydrides: Single-line compounds and crystal-field effects
Journal Article
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Sun Nov 30 23:00:00 EST 1975
· Phys. Rev., B, v. 12, no. 11, pp. 4805-4811
·
OSTI ID:4118643
Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
ATOMIC IONS
CHARGED PARTICLES
CRYSTAL FIELD
DYSPROSIUM ALLOYS
DYSPROSIUM IONS
ELECTRONIC STRUCTURE
ERBIUM ALLOYS
ERBIUM IONS
EXCHANGE INTERACTIONS
HYPERFINE STRUCTURE
INTERACTIONS
IONS
LUTETIUM ALLOYS
POLARIZATION
PRASEODYMIUM ALLOYS
RARE EARTH ALLOYS
SCANDIUM ALLOYS
THULIUM ALLOYS
YTTERBIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
ATOMIC IONS
CHARGED PARTICLES
CRYSTAL FIELD
DYSPROSIUM ALLOYS
DYSPROSIUM IONS
ELECTRONIC STRUCTURE
ERBIUM ALLOYS
ERBIUM IONS
EXCHANGE INTERACTIONS
HYPERFINE STRUCTURE
INTERACTIONS
IONS
LUTETIUM ALLOYS
POLARIZATION
PRASEODYMIUM ALLOYS
RARE EARTH ALLOYS
SCANDIUM ALLOYS
THULIUM ALLOYS
YTTERBIUM ALLOYS