Title :
Ion-Irradiation-Induced Effects on the Magnetic Properties of Co-Based Amorphous Ribbon
Author :
Park, D.G. ; Lee, I.J. ; Park, C.Y. ; Angani, C.S. ; Kim, C.G. ; Cheong, Y.M.
Author_Institution :
Nucl. Mater. Res. Dept., Korea Atomic Energy Res. Inst., Daejeon, South Korea
Abstract :
The N and Ar ions have been irradiated on the Co-based amorphous ribbon to investigate the mechanism of the abrupt increase of the giant magneto-impedance (GMI) response. The M-H loop parameters and grazing incident X-ray diffraction were used to characterize the samples before and after ion irradiation. The GMI ratio increased considerably in the ion irradiated samples and GMI response showed strong dependency on the irradiated ion species and driving frequencies. Substantial modifications of the magnetic properties such as increase of coercivity and change of saturation magnetization were observed in the ion irradiated samples.
Keywords :
X-ray diffraction; amorphous state; boron alloys; cobalt alloys; coercive force; giant magnetoresistance; ion beam effects; iron alloys; magnetic hysteresis; magnetisation; silicon alloys; Co66Fe4B15Si15; M-H loop parameters; amorphous ribbon; coercivity; giant magneto-impedance; grazing incident X-ray diffraction; ion-irradiation-induced effects; saturation magnetization; Amorphous magnetic materials; Amorphous materials; Crystallization; Magnetic anisotropy; Magnetic materials; Magnetic properties; Permeability; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials; Amorphous ribbon; X-ray diffraction; coercivity; giant magneto–impedance (GMI); ion irradiation; magneto–optical Kerr effect (MOKE);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2034468
