Title :
Magnetoimpedance analyzed from the components of the permeability in annealed amorphous Fe83Zr7B8Cu2
Author :
Byon, Kwang-Seok ; Yu, Seong-Cho ; Kim, Jung Sun ; Kim, Cheol Gi
Author_Institution :
Chungbuk Nat. Univ., Cheongju, South Korea
fDate :
9/1/2000 12:00:00 AM
Abstract :
The frequency dependence of the complex permeability and magnetoimpedance have been measured in annealed amorphous Fe83Zr7B8Cu2 ribbons. The permeability resulting from domain wall motion in the longitudinal direction drastically decreases in the annealed sample, while the permeability from the rotational magnetization increases up to an annealing temperature of 500°C and then shows a decrease for higher annealing temperatures. The magnetoimpedance variation with annealing temperature, reflecting the change of transverse permeability due to domain wall motion, has the same dependence on annealing temperature as the longitudinal permeability derived from rotational magnetization
Keywords :
amorphous magnetic materials; annealing; boron alloys; copper alloys; ferromagnetic materials; iron alloys; magnetic domain walls; magnetic permeability; magnetisation; magnetoresistance; metallic glasses; zirconium alloys; 500 C; Fe83Zr7B8Cu2; annealed amorphous Fe83Zr7B8Cu 2; annealed amorphous Fe83Zr7B8Cu 2 ribbons; annealed sample; annealing temperature; complex permeability; domain wall motion; frequency dependence; longitudinal direction; magnetoimpedance; permeability; rotational magnetization; Amorphous magnetic materials; Annealing; Frequency dependence; Frequency measurement; Magnetic analysis; Magnetic domain walls; Magnetic domains; Magnetization; Permeability; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
