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Self similar Barkhausen noise in magnetic domain wall motion

Onuttom Narayan
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Abstract

A model for domain wall motion in ferromagnets is analyzed. Long-range magnetic dipolar interactions are shown to give rise to self-similar dynamics when the external magnetic field is increased adiabatically. The power spectrum of the resultant Barkhausen noise is of the form $1/ω^α$, where $α\approx 1.5$ can be estimated from the critical exponents for interface depinning in random media.

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BibTeXRIS

Onuttom Narayan. 1996-10-08. Self similar Barkhausen noise in magnetic domain wall motion. https://doi.org/10.1103/physrevlett.77.3855

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