Concentration dependence of the magnetic properties in amorphous Fe-P-B alloys

Technical Report · Sat May 01 00:00:00 EDT 1976

DOI:https://doi.org/10.2172/7273600· OSTI ID:7273600

Durand, J.

The variation with composition of the magnetic properties of amorphous Fe--P--B alloys obtained by splat-cooling is discussed. For a given Fe concentration, the magnetic moment per atom anti ..mu.. and the Curie temperature T/sub c/ both increase with the substitution of B for P. The variation of anti ..mu.. and T/sub c/ as a function of the B content had the same discontinuity as that occurring between the two phases epsilon and psilon/sub 1/ of the crystalline Fe/sub 3/P/sub 1-x/B/sub x/ compounds. The variation of anti ..mu.. and T/sub c/ was also studied when one metalloid (P or B) substitutes for Fe, the other metalloid remaining constant. The value of anti ..mu.. was found to decrease when the P or B content is increased, as expected from a rigid band model. In the same concentration range, T/sub c/ increases with either P or B. The different behaviors of anti ..mu.. and T/sub c/ are tentatively explained by assuming that the amorphous Fe has two magnetic states (ferro and antiferromagnetic) as already suggested for crystalline Fe in a fcc environment.

• Research Organization: California Inst. of Tech., Pasadena (USA). W.M. Keck Lab. of Engineering Materials
• DOE Contract Number: AT(04-3)-822
• OSTI ID: 7273600
• Report Number(s): CALT-822-83; TRN: 76-017619
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON BORIDES
MAGNETIC PROPERTIES
IRON PHOSPHIDES
AMORPHOUS STATE
CHEMICAL COMPOSITION
CURIE POINT
MAGNETIC MOMENTS
QUANTITY RATIO
SPLAT COOLING
BORIDES
BORON COMPOUNDS
COOLING
IRON COMPOUNDS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360204* - Ceramics
Cermets
& Refractories- Physical Properties