
pmid: 10062325
arXiv: cond-mat/9610053
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 $1/��^��$, where $��\approx 1.5$ can be estimated from the critical exponents for interface depinning in random media.
7 pages, RevTex. To appear in Phys. Rev. Lett
Statistical Mechanics (cond-mat.stat-mech), FOS: Physical sciences, Condensed Matter - Statistical Mechanics
Statistical Mechanics (cond-mat.stat-mech), FOS: Physical sciences, Condensed Matter - Statistical Mechanics
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