Effect of the silicon content on the magnetic susceptibility disaccommodation in silicon–iron ribbons

Abstract The magnetic permeability disaccommodation for the microcrystalline Fe– x Si ( x =3, 5, 6.5 and 7.2 wt%) ribbons in the temperature range 220–410 K has been investigated. From those studies it was found that the relaxation spectrum in these alloys might be decomposed into five elementary processes. The relaxation process occurring at about 260 K is considered as the Snoek relaxation. However, processes occurring at higher temperatures seem to be connected with jumping of C atoms in the neighbourhood of Fe atoms surrounded by 1–4 silicon atoms.