Magnetic properties of the AnFe/sub 2/ compounds (An = U, Np, Pu, and Am)

Conference · Wed Dec 31 23:00:00 EST 1975

OSTI ID:7317844

Lander, G H; Aldred, A T; Dunlap, B D; Shenoy, G K

The magnetic properties of the actinide Laves compounds (cubic C-15 crystal structure) with iron were studied by magnetization, neutron diffraction, and Moessbauer-effect techniques. All the compounds exhibit a spontaneous magnetization. Magnetic moments of 0.06, 1.09, 0.45, and -0.4..mu../sub B/ are associated with the U, Np, Pu, and Am ions, respectively. The corresponding iron moments are 0.6, 1.4, 1.5, and 1.7..mu../sub B/. The ferrimagnetic nature of AmFe/sub 2/ suggests a partial occupancy of the Am/sup 2 +/:f/sup 7/ state, inasmuch as the Am/sup 3 +/:f/sup 6/ state has a nonmagnetic ground state.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7317844
• Report Number(s): CONF-760922-15
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
AMERICIUM ALLOYS
AMERICIUM IONS
ATOMIC IONS
CHARGED PARTICLES
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
INTERMETALLIC COMPOUNDS
IONS
IRON ALLOYS
IRON BASE ALLOYS
IRON IONS
LAVES PHASES
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MOESSBAUER EFFECT
NEPTUNIUM ALLOYS
NEPTUNIUM IONS
NEUTRON DIFFRACTION
PHYSICAL PROPERTIES
PLUTONIUM ALLOYS
PLUTONIUM IONS
SCATTERING
URANIUM ALLOYS
URANIUM IONS