Abstract
Investigations of the surface magnetization reversal in Co-rich glass-covered amorphous microwires have been performed in the presence of high-frequency electric current flowing along the microwires. The experiments have been carried out using the magneto-optical Kerr effect in axial and circular magnetic fields. Strong influence of the high-frequency current on the mechanism of magnetization reversal and coercive properties has been found. It has been discovered that the high-frequency current induces the appearance of circular magnetic bistability. The high-frequency-induced effects are associated with the influence of the high-frequency electric current on the nucleation of circular magnetic domains and on the motion of domain walls in the outer shell of the microwires.
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