Title :
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
fDate :
5/1/1996 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
