Investigation of magnetic properties and micromagnetic structure of multicomponent Fe61.4Ni3.6Cr3.2Si2.4Nb7.8Mn3.6B18 amorphous ribbons

摘要

The magnetic properties and micromagnetic structure (equilibrium distribution of magnetization) of multicomponent Fe61.4Ni3.6Cr3.2Si2.4Nb7.8Mn3.6B18 amorphous ribbons are studied using scanning Kerr microscopy and a vibrating sample magnetometer. 5-mm-wide and 35-mum-thick ribbons were obtained by hardening of melt in a rapidly rotating drum. Strong difference in the surface and bulk magnetic parameters of the ribbons is established. Domain walls (DW) parallel to the ribbon length are detected. It is shown that quasistatic magnetization reversal of ribbons mainly occurs due to the DW displacement. (C) 2004 MAIK "Nauka/Interperiodica".