Study of structural relaxation in ferromagnetic amorphous Fe-Si-B ribbons by MAE investigations

Author

Alves, Francisco ; Perron, Jean Claude

Author_Institution

LESiR-ENSC, Cachan, France

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1946

Lastpage

1951

Abstract

The present study concerns structural relaxation in a Fe-based amorphous alloy via the influence of temperature (293-673 K) and time (3-10⁴ s) on the value of the initial permeability. Magnetic after-effects at low temperatures (disaccommodation) and structural relaxation at high temperatures have been observed and analyzed. On the one hand, assuming a first order kinetics of the relaxation processes, one mode spectrum of activation energies was obtained. On the other hand, the initial permeability, correlated to anisotropy, is a good probe for investigation of structural relaxation during annealings

Keywords

amorphous magnetic materials; boron alloys; crystallisation; ferromagnetic materials; iron alloys; magnetic aftereffect; magnetic anisotropy; magnetic annealing; magnetic permeability; magnetic relaxation; silicon alloys; 293 to 673 K; 3 to 10000 s; Fe-Si-B; activation energies; anisotropy; annealing; disaccommodation; ferromagnetic amorphous Fe-Si-B ribbons; first order kinetics; initial permeability; magnetic after-effects; structural relaxation; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Kinetic theory; Magnetic analysis; Magnetic anisotropy; Permeability; Perpendicular magnetic anisotropy; Probes; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.492891

Filename

492891