ABSTRACT
Magnetic FieldsOur experiments were performed on an amorphous wire of nominal composition Co72.5Si12.5B15 with a diameter of 120 µm. The transverse and longitudinal Kerr effect dependencies on the magnetic field are represented in Figs. 3.1 and 3.2, respectively. Figures 3.1a and 3.2a show the Kerr effect loops when a DC electric current does not pass through the wire. It is possible to conclude that (1) for a vanishing value of the magnetic field (in the vicinity of zero), the magnetization in the surface area of wire is oriented close to the perpendicular direction to the wire axis and (2) increasing the magnetic field amplitude is related to the rotation of the magnetization in the direction parallel to the wire axis.
