Remagnetization process in magnetically soft amorphous wire under the influence of magnetic field of alternating current

Abstract An AC voltage of double frequency with respect to that of an AC current is detected in a coil wound around a Co-rich amorphous wire when the amplitude of the AC current exceeds several mA. The amplitudes of the even harmonics depend on the value of uniform external magnetic field applied parallel to the wire axis. It is shown theoretically that for large enough amplitude of the AC current the longitudinal component of the wire’s magnetization undergoes oscillations with double frequency with respect to that of the AC current. Therefore, the experimentally observed AC voltage arises due to the Faraday effect.