Title :
Barkhausen Noise in Ion Implanted Amorphous Ribbon
Author :
Song, Hoon ; Park, D.G. ; Cho, N.Z.
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
Barkhausen noise (BN) has been investigated in the ion irradiated Co-based amorphous ribbon as a function of ion dose. The behavior of BN was analyzed by means of signal analysis techniques including fast Fourier and wavelet transforms. The parameters of BN signals and the power spectrum density were increased at the Ar ion irradiated sample with dose from 1015 to 1017 ion/cm2. The results are interpreted on the basis of radiation damage and domain wall dynamics.
Keywords :
Barkhausen effect; amorphous magnetic materials; boron alloys; cobalt alloys; fast Fourier transforms; ion beam effects; ion implantation; iron alloys; magnetic domain walls; silicon alloys; wavelet transforms; Co66Fe4B15Si15; argon ion irradiated sample; barkhausen noise; domain wall dynamics; fast Fourier transforms; ion dose; ion implanted amorphous ribbon; power spectrum density; radiation damage; signal analysis techniques; wavelet transforms; Amorphous magnetic materials; Amorphous materials; Argon; Fast Fourier transforms; Magnetic domain walls; Magnetic domains; Magnetic materials; Signal analysis; Wavelet analysis; Wavelet transforms; Barkhausen noise; domain wall pinning; giant magnetoimpedance; ion irradiation;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2032835
