Title :
Annealing effect on domain wall motion and magnetization rotation in amorphous Fe84Zr7B8Cu1 ribbons
Author :
Ryu, Gil Ho ; Yu, Seong-Cho ; Kim, Cheol Gi ; Yoon, Seok Soo
Author_Institution :
Dept. of Phys., Chung-Buk Nat. Univ., Cheongju, South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
The frequency spectra of complex permeability have been measured as a function of ac field amplitude in the annealed amorphous Fe84 Zr7B8Cu1 ribbons. The longitudinal permeability results from the rotational magnetization for small ac field, h0<23.4 mOe in as-quenched sample. However, for h0⩾23.4 mOe, the wall motion begins to be involved in the low frequency region. The permeability due to the wall motion drastically decreases with increasing annealing temperature, while the permeability due to the rotational magnetization increases with increasing annealing temperature up to 500°C and then decreases for higher annealing temperature
Keywords :
amorphous magnetic materials; annealing; boron alloys; copper alloys; iron alloys; magnetic domain walls; magnetic permeability; zirconium alloys; AC field amplitude; Fe84Zr7B8Cu; amorphous ribbons; annealing; complex permeability; domain wall motion; frequency spectra; longitudinal permeability; magnetization rotation; rotational magnetization; wall motion; Amorphous materials; Annealing; Frequency measurement; Iron; Magnetic domain walls; Magnetization; Permeability measurement; Physics; Temperature; Zirconium;
Journal_Title :
Magnetics, IEEE Transactions on
