Moessbauer and neutron diffraction studies of Y/sub 2/(Fe/sub 1-//sub x/Mn/sub x/)/sub 14/B

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

DOI:https://doi.org/10.1063/1.342287· OSTI ID:6746912

Pringle, O A; Marasinghe, G K; Long, G J; James, W J; Yelon, W B; Xie, D; Grandjean, F

We have used Moessbauer spectroscopy and neutron diffraction to study a series of Y/sub 2/(Fe/sub 1-//sub x/Mn/sub x/)/sub 14/B samples in the composition range from x = 0.0 to 0.4. Y/sub 2/(Fe/sub 0.6/Mn/sub 0.4/)/sub 14/B is paramagnetic at both room temperature and 85 K. The iron quadrupole splitting in this paramagnetic compound allows us to place an upper limit on the quadrupole shift in the magnetic Y/sub 2/(Fe/sub 1-//sub x/Mn/sub x/)/sub 14/B alloys. Refinement of Y/sub 2/(Fe/sub 1-//sub x/Mn/sub x/)/sub 14/B neutron diffraction data have been used to give the site occupancies of manganese on the transition-metal sublattice. Both neutron diffraction patterns and Moessbauer effect spectra indicate a marked preference for the manganese to occupy the 8j/sub 2/ site, which is the largest volume transition-metal site. Both experimental techniques give completely consistent results for the site occupancies in Y/sub 2/(Fe/sub 1-//sub x/Mn/sub x/)/sub 14/B.

• Research Organization: Departments of Physics and Chemistry and the Graduate Center for Materials Research, University of Missouri-Rolla, Rolla, Missouri 65401
• OSTI ID: 6746912
• 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
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BORIDES
BORON COMPOUNDS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CURIE POINT
DIFFRACTION
IRON BORIDES
IRON COMPOUNDS
MAGNETISM
MANGANESE BORIDES
MANGANESE COMPOUNDS
MOESSBAUER EFFECT
NEUTRON DIFFRACTION
PARAMAGNETISM
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCATTERING
SOLIDIFICATION
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM BORIDES
YTTRIUM COMPOUNDS