The statistical properties of the Barkhausen noise (BN) in thin amorphous films are studied as a function of both the nominal composition and the thickness. BN was observed in single films with nominal compositions Fe73.5Cu1Nb3Si22.5- xBx (with x = 4 and 9) in the thickness range 20 nm-5 μm. The distributions of Barkhausen jump sizes and duration times were obtained and fitted to power laws with critical exponents τ = 1.25 ± 0.05 and α = 1.60 ± 0.05, respectively.
Effects of thickness on the statistical properties of the Barkhausen noise in amorphous films / L. Santi, F. Bohn, A.D.C. Viegas, G. Durin, A. Magni, R. Bonin, S. Zapperi, R.L. Sommer. - In: PHYSICA. B, CONDENSED MATTER. - ISSN 0921-4526. - 384:1-2(2006 Oct 01), pp. 144-146.
Effects of thickness on the statistical properties of the Barkhausen noise in amorphous films
S. Zapperi;
2006
Abstract
The statistical properties of the Barkhausen noise (BN) in thin amorphous films are studied as a function of both the nominal composition and the thickness. BN was observed in single films with nominal compositions Fe73.5Cu1Nb3Si22.5- xBx (with x = 4 and 9) in the thickness range 20 nm-5 μm. The distributions of Barkhausen jump sizes and duration times were obtained and fitted to power laws with critical exponents τ = 1.25 ± 0.05 and α = 1.60 ± 0.05, respectively.
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