Title :
Effect of annealing field orientation on GMI profiles in Co-based amorphous ribbon
Author :
Yoon, S.S. ; Kim, C.G. ; Jang, K.J. ; Lee, Y.H.
Author_Institution :
Dept. of Phys., Andong Nat. Univ., South Korea
fDate :
9/1/2000 12:00:00 AM
Abstract :
The giant magnetoimpedance (GMI) is studied as function of annealing-field angle θk in Co66Fe4 NiB14Si15 ribbon with respect to transverse direction. The GMI profile at 10 kHz shows two peaks located at negative and positive external field H. The interval between two peaks, about 2.1 Oe for θk=0°, slightly increases with θk up to θk=30° and then decreases down to 1.0 Oe for θk=90°. However, two peaks are asymmetric and hysteresis exists during cyclic magnetization. The asymmetry ratio, fractional difference of two peaks, is maximum about 2% for θk=10° and its sign is reversed from θk=40
Keywords :
amorphous magnetic materials; boron alloys; cobalt alloys; giant magnetoresistance; iron alloys; magnetic annealing; magnetic hysteresis; nickel alloys; silicon alloys; 10 MHz; Co-based amorphous ribbon; Co66Fe4NiB14Si15; GMI profiles; annealing field orientation; asymmetry ratio; cyclic magnetization; fractional difference; giant magnetoimpedance; Amorphous magnetic materials; Amorphous materials; Annealing; Iron; Magnetic anisotropy; Magnetic field measurement; Magnetic hysteresis; Magnetization; Permeability; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
