Title :
Dependence of magnetization dynamics and magneto-impedance effect in FeSiB amorphous wire on annealing conditions
Author :
Takemura, Y. ; Tokuda, H. ; Komatsu, K. ; Masuda, Shin ; Yamada, T. ; Kakuno, K. ; Saito, Kazuyuki
Author_Institution :
Yokohama Nat. Univ., Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
The dependence of magnetization dynamics and magneto-impedance effect in positively magnetostrictive Fe77.5Si7.5B 15 amorphous wires on annealing conditions was studied. The observed MI ratio of the annealed samples was as much as 36% and optimum annealing conditions were suggested. The locus of the magnetization vector of the annealed wire indicated that the circumferential magnetization proceeded easily in the annealed wire. It was also suggested that the effect of oxidation should be considered for samples annealed in air
Keywords :
Auger effect; amorphous magnetic materials; annealing; boron alloys; ferromagnetic materials; iron alloys; magnetisation; magnetoresistance; magnetostriction; metallic glasses; oxidation; silicon alloys; 10 to 60 min; 200 to 400 C; Auger electron spectroscopy; Fe77.5Si7.5B15; FeSiB amorphous wire; MI ratio; air annealing; circumferential magnetization; magnetization dynamics; magnetization vector locus; magneto-impedance effect; optimum annealing conditions; oxidation; positively magnetostrictive Fe77.5Si7.5B 15 amorphous wires; vacuum annealing; Amorphous magnetic materials; Amorphous materials; Annealing; Furnaces; Impedance; Magnetic field measurement; Magnetization; Magnetostriction; Oxidation; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
