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Dynamic hysteresis in Finemet thin films

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

We performed a series of dynamic hysteresis measurements on three series of Finemet films with composition Fe$_{73.5}$Cu$_1$Nb$_3$Si$_13.5$B$_9$, using both the longitudinal magneto-optical Kerr effect (MOKE) and the inductive fluxometric method. The MOKE dynamic hysteresis loops show a more marked variability with the frequency than the inductive ones, while both measurements show a similar dependence on the square root of frequency. We analyze these results in the frame of a simple domain wall depinning model, which accounts for the general behavior of the data.

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L. Santi, R. L. Sommer, A. Magni, G. Durin, F. Colaiori, S. Zapperi. 2005-07-13. Dynamic hysteresis in Finemet thin films. https://doi.org/10.1109/tmag.2003.815550

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