Computer simulation, Finite elements method, Magnetic composites, Magnetic field sensors, Rapidly quenched amorphous ribbons, Thin film, Thin films, PERMALLOY-FILMS, magnetic composites, magnetic field sensors & nbsp;, GIANT MAGNETO-IMPEDANCE, DOMAIN-STRUCTURE, ANISOTROPY, magnetic field sensors, thin films, CO-BASED ALLOY, NANOPARTICLES, rapidly quenched amorphous ribbons, SURFACE, computer simulation, thin film, finite elements method