Monitoring the Velocity of Domain Wall Motion in Magnetic Microwires

Sensors (Basel). 2024 Feb 19;24(4):1326. doi: 10.3390/s24041326.

Abstract

An approach was proposed to control the displacement of domain walls in magnetic microwires, which are employed in magnetic sensors. The velocity of the domain wall can be altered by the interaction of two magnetic microwires of distinct types. Thorough investigations were conducted utilizing fluxmetric, Sixtus-Tonks, and magneto-optical techniques. The magneto-optical examinations revealed transformation in the surface structure of the domain wall and facilitated the determination of the mechanism of external influence on the movement of domain walls in magnetic microwires.

Keywords: amorphous magnetic microwires; magnetic anisotropy; magnetic domains; magneto-optic Kerr effect; soft magnetic materials.