Moessbauer effect study of Y/sub 2/Fe/sub 14/B and its aluminum solid solutions

Journal Article · Tue Nov 15 04:00:00 EST 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.342288· OSTI ID:6726437

Tharp, D E; Long, G J; Pringle, O A; Marasinghe, G K; James, W J; Grandjean, F

The Moessbauer spectra of Y/sub 2/Fe/sub 14/B have been measured from 85 to 296 K. Analysis of the spectra indicates that the near-neighbor rare-earth atoms directly influence the orientation of the principal axis of the electric field gradient. The hyperfine parameters are very similar to those of Nd/sub 2/Fe/sub 14/B, but the internal fields are somewhat smaller at room temperature in the yttrium compound. The Moesssbauer spectra of Y/sub 2/(Fe/sub 1-//sub x/Al/sub x/)/sub 14/B, where x equals 0.00, 0.02, 0.04, 0.06, and 0.08, have been measured at 85 K. The average internal hyperfine field in these compounds decreases linearly with increasing aluminum content.

• Research Organization: Departments of Chemistry and Physics and the Graduate Center for Materials Research, University of Missouri-Rolla, Rolla, Missouri 65401
• OSTI ID: 6726437
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:10; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALUMINIUM COMPOUNDS
BORIDES
BORON COMPOUNDS
CRYSTAL FIELD
DISPERSIONS
IRON BORIDES
IRON COMPOUNDS
LOW TEMPERATURE
MEDIUM TEMPERATURE
MIXTURES
MOESSBAUER EFFECT
SOLID SOLUTIONS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM BORIDES
YTTRIUM COMPOUNDS