amorphous, antiferromagnetic exchange coupling, nanocrystalline CoFeSiB thin film
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
This study examined the structural, magnetic, and transport properties of CoFeSiB films with various Co compositions. The main focus was on two samples, amorphous Co-74 Fe-14 Si-14 B-8 and nanocrystalline Co-78 Fe-2 Si-12 B-8 thin films. The results show that the amorphous film is a typical soft magnetic material, while the nanocrystalline film has a large saturation field. It is believed that in a nanocrystalline thin film, a large saturation field is caused by antiferromagnetic exchange at the boundary between the amorphous and nanocrystalline phases.