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

Author

Durand, J.

Author_Institution

California Institute of Technology, Pasadena, California

Volume

12

Issue

6

fYear

1976

fDate

11/1/1976 12:00:00 AM

Firstpage

945

Lastpage

947

Abstract

The concentration dependence of the magnetic properties of amorphous Fe-P-B alloys obtained by splat-cooling is discussed. For a given Fe concentration, the magnetic moment $\\bar{\\mu}$ averaged over all atoms of material and the Curie temperature Tcboth increase with the substitution of B for P. We observed for the variation of $\\bar{\\mu}$ and Tcas a function of the B content the same discontinuity as that occurring between the two phases $\\varepsilon$ and $\\varepsilon _{1}$ of the crystalline Fe3P1-xBxcompounds. We studied also the variation of $\\bar{\\mu}$ and Tcwhen one metalloid (P or B) substitutes for Fe, the other metalloid remaining constant. $\\bar{\\mu}$ was found to decrease when the P (or B) content is increased, as expected from a rigid band model. For the same concentrations, Tcincreases. The different behaviours of $\\bar{\\mu}$ and Tcare 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.

Keywords

Amorphous magnetic materials/devices; Amorphous magnetic materials; Amorphous materials; Crystallization; Electrons; Iron; Magnetic moments; Magnetic properties;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1976.1059135

Filename

1059135