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 mm: We do not observed any scaling predicted by theoretical models, while dynamic loops show a logarithmic dependence on the frequency.
Investigation of scaling properties of hysteresis in finemet thin films / Santi, L.; Dorneles, L. S.; Sommer, R. L.; Colaiori, F.; Zapperi, S.; Magni, Alessandro; Durin, Gianfranco. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 272-276:(2004), pp. E913-E914.
Investigation of scaling properties of hysteresis in finemet thin films
MAGNI, ALESSANDRO;DURIN, GIANFRANCO
2004
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 mm: We do not observed any scaling predicted by theoretical models, while dynamic loops show a logarithmic dependence on the frequency.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
