The soft magnetic properties of sputtered (0 approximately 3-wt%) Si-Fe alloy thin films fabricated in (Ar+N/sub 2/) plasma were investigated in connection with metallurgical structure. 2.7-wt% Si-Fe film annealed at 400 degrees C shows a high effective permeability mu /sub eff/ of about 1600 at 5 MHz. It has been observed that this film consists of alpha -Fe with a grain size of less than 150 AA and a slight expansion of lattice spacing of the
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Takahashi et al. (1990) studied this question.
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