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Effect of annealing field orientation on GMI profiles in Co-based amorphous ribbon

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4 Author(s)
Yoon, S.S. ; Dept. of Phys., Andong Nat. Univ., South Korea ; Kim, C.G. ; Jang, K.J. ; Lee, Y.H.

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

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Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )