Galvanomagnetic effect and domain wall resistance of ferromagnetic Fe–Ni wire in submicrometer width

Abstract The magnetoresistance of an Fe–Ni wire in the presence of a local magnetic field was investigated. The local magnetic field is produced on the Fe–Ni wire by the electric current flowing in a crossing Cu wire. The magnetization reversal of Fe–Ni wire can be controlled by adjusting the strength and sense of the local field. The magnetoresistance is discussed from the viewpoint of the anisotropic magnetoresistance (AMR) effect.