Temperature dependence of the magnetization and of the other physical properties of rapidly quenched amorphous CoB alloys

Author

Konc, M. ; Spisak, P. ; Kollar, Peter ; Sovák, P. ; Dusa, O. ; Reininger, T.

Author_Institution

Dept. of Exp. Phys., Safarik (P.J.) Univ., Kosice, Slovakia

Volume

30

Issue

2

fYear

1994

fDate

3/1/1994 12:00:00 AM

Firstpage

524

Lastpage

526

Abstract

We report here our results on magnetization study of amorphous Co _100-xB_x ribbons with 20⩽x⩽30 at.% B in the temperature range 10 K to 800 K and in applied magnetic field 5·10³ A/m. The thermomagnetization curve is found to obey the Bloch law, M_s(T)=M_s(0)(1-βT^3/2-γT^5/2, spin wave stiffness constant and the range of the exchange interaction were calculated from the experimental results. We have found that the B content has a strong effect on stiffness constant D

Keywords

boron alloys; cobalt alloys; exchange interactions (electron); ferromagnetic properties of substances; magnetic properties of amorphous substances; magnetisation; metallic glasses; spin waves; 10 to 800 K; Bloch law; CoB; applied magnetic field; exchange interaction; magnetization; physical properties; rapidly quenched amorphous CoB alloys; spin wave stiffness constant; temperature dependence; thermomagnetization curve; Amorphous magnetic materials; Amorphous materials; Coercive force; Elementary particle exchange interactions; Magnetic properties; Saturation magnetization; Soft magnetic materials; Temperature dependence; Temperature distribution; Temperature measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312324

Filename

312324