Abstract
Minor Loop Scaling Rules for Finemet Type Soft Magnetic Cores L.K. Vargaa,∗, J. Kova£ Wigner Research Center for Physics, Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, 1525 Budapest, P.O.B.49, Hungary Institute of Experimental Physics SAS, Watsonova 47, 040 01 Ko2ice, Slovakia The validity of the Steinmetz law (P = KB) has been analyzed using the tanh model, by splitting the minor loops in three or two components, corresponding to di erent magnetization processes at di erent excitation levels. It is shown that the original Steinmetz law with the exponent n = 1.6 is valid only at and above the coercive eld, for intermediate and high induction values, where all the three magnetization processes are present. At small magnetization levels the exponent is about 3, much higher than the original proposed value.
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