Electrical resistivity and magnetostriction of nanocrystalline Fe–N–B ribbon

Abstract Because of the high saturation magnetization of nanocrystalline Fe 84.6 N 7.8 B 7.4 ribbon with α″-Fe 16 N 2 nanocrystallites embedded in an amorphous matrix, its electrical resistivity and magnetostriction were studied to improve its soft magnetic properties. The prepared sample exhibits a higher electrical resistivity of 246 μΩ cm and a smaller saturation magnetostriction of 2.52 ppm. The present results indicate that nanocrystalline Fe 84.6 N 7.8 B 7.4 ribbon with α″-Fe 16 N 2 phase is a good candidate for soft magnetic materials.