We performed a series of dynamic hysteresis measurements on Finemet films with composition Fe/sub 73.5/Cu/sub 1/Nb/sub 3/Si/sub 13.5/B/sub 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.
Dynamic Hysteresis in Finemet Thin Films / L. Santi, R.L. Sommer, A. Magni, G. Durin, F. Colaiori, S. Zapperi. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - 39:5 pt 2(2003 Sep), pp. 2666-2668. ((Intervento presentato al convegno International Magnetics Conference tenutosi a Boston nel 2003.
Dynamic Hysteresis in Finemet Thin Films
S. ZapperiUltimo
2003
Abstract
We performed a series of dynamic hysteresis measurements on Finemet films with composition Fe/sub 73.5/Cu/sub 1/Nb/sub 3/Si/sub 13.5/B/sub 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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