Ion-Irradiation-Induced Effects on the Magnetic Properties of Co-Based Amorphous Ribbon

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 irradia...

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Veröffentlicht in:	IEEE transactions on magnetics 2010-02, Vol.46 (2), p.662-665
Hauptverfasser:	Park, D. G., Lee, I. J., Park, C. Y., Angani, C. S., Kim, C. G., Cheong, Y. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous magnetic materials Amorphous materials Amorphous ribbon Cobalt coercivity Crystallization Diffraction giant magneto-impedance (GMI) Grazing ion irradiation Irradiation Magnetic anisotropy Magnetic materials Magnetic properties Magnetism magneto-optical Kerr effect (MOKE) Magnetoimpedance Permeability Perpendicular magnetic anisotropy Ribbons Saturation (magnetic) Saturation magnetization Soft magnetic materials X-ray diffraction X-rays
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Beschreibung
Zusammenfassung:	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.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/TMAG.2009.2034468