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Investigation of scaling properties of hysteresis in Finemet thin films

L Santi·L. S. Dorneles·R. L. Sommer·F. Colaiori·S. Zapperi·A. Magni·G. Durin
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Abstract

We study the behavior of hysteresis loops in Finemet Fe$_{73.5}$Cu$_1$Nb$_3$Si$_{18.5}$B$_4$ thin films by using a fluxometric setup based on a couple of well compensated pickup coils. The presence of scaling laws of the hysteresis area is investigated as a function of the amplitude and frequency of the applied field, considering sample thickness from about 20 nm to 5 $μ$m. We do not observe any scaling predicted by theoretical models, while dynamic loops show a logarithmic dependence on the frequency.

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L Santi, L. S. Dorneles, R. L. Sommer, F. Colaiori, S. Zapperi, A. Magni, G. Durin. 2005-07-13. Investigation of scaling properties of hysteresis in Finemet thin films. https://doi.org/10.1016/j.jmmm.2003.12.231

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