Title :
Giant magneto-impedance effect in the sandwiched FeSiB/Cu/FeSiB films
Author :
Zhou, Yong ; Yu, Jinqiang ; Zhao, Xiaolin ; Cai, Bingchu
Author_Institution :
Inf. Storage Res. Center, Shanghai Jiaotong Univ., China
fDate :
9/1/2000 12:00:00 AM
Abstract :
Giant magneto-impedance (GMI) effect has been studied for the sandwiched FeSiB/Cu/FeSiB films in the frequency range 1-40 MHz. The magnitude of the maximum GMI ratio ([Z(H)-Z(0)]/Z(0)) is 13.6% for a magnetic field of 20 Oe and a frequency of 3 MHz, and the magnetic field Hp at which the maximum GMI ratio occurs is discussed. In addition, the sandwiched FeSiB/Cu/FeSiB films display larger negative values of the GMI ratio at relatively larger magnetic field. Frequency dependence of the GMI ratio shows that there is a sharp peak in the GMI spectra with the increasing frequency
Keywords :
boron alloys; copper; giant magnetoresistance; iron alloys; magnetic multilayers; silicon alloys; 1 to 10 MHz; FeSiB-Cu-FeSiB; frequency dependence; giant magnetoimpedance effect; maximum GMI ratio; sandwiched films; Amorphous magnetic materials; Frequency; Magnetic anisotropy; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
