Mechanism of relaxation dispersions of permeability spectra in Co-based amorphous wire

Author

Song, Seon-Ho ; Yu, Seong-Cho ; Kim, Cheol Gi ; Vázquez, M.

Author_Institution

Dept. of Phys., Chung-Buk Nat. Univ., Cheongju, South Korea

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3065

Lastpage

3067

Abstract

The permeability spectra has been measured in as-quenched (Co_0.94Fe_0.06)_72.5Si_12.5B ₁₅ amorphous wire as a function of dc-biased current, I_b. Two relaxations of permeability spectra are revealed in 4 and 52 kHz regions, indicating that different magnetization mechanisms are involved in each frequency region. As the dc-biased current I_b increases, the value of spectra curve at 52 kHz monotonously decreases due to the decrease of core domains by I_b. However the value of the spectra curve at 4 kHz increases with I _b up to 4.25 mA and then decreases with further increasing I _b

Keywords

amorphous magnetic materials; boron alloys; cobalt alloys; iron alloys; magnetic domains; magnetic permeability; magnetic relaxation; magnetisation; silicon alloys; (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅; 4 kHz; 52 kHz; DC-biased current; amorphous wire; core domains; magnetization; permeability spectra; relaxation dispersions; Amorphous materials; Current measurement; Frequency measurement; Impedance measurement; Iron; Magnetic cores; Magnetization; Permeability measurement; Solenoids; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908681

Filename

908681