Barkhausen Noise in Ion Implanted Amorphous Ribbon

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 wer...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2010-02, Vol.46 (2), p.525-528
Main Authors: Song, Hoon, Park, D. G., Cho, N. Z.
Format: Article
Language:English
Subjects:
Amorphous magnetic materials
Amorphous materials
Argon
Barkhausen effect
Barkhausen noise
Boron nitride
Density
domain wall pinning
Fast Fourier transforms
Fourier analysis
giant magnetoimpedance
ion irradiation
Irradiation
Magnetic domain walls
Magnetic domains
Magnetic materials
Magnetism
Noise
Ribbons
Signal analysis
Wavelet analysis
Wavelet transforms
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Summary: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 10 15 to 10 17 ion/cm 2 . The results are interpreted on the basis of radiation damage and domain wall dynamics.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2009.2032835