FMR and domain structure in joule-heated glass-covered microwires

Abstract The magnetic domain structure of the Co 70.4 Fe 4.6 Si 10 B 15 glass-covered amorphous microwires Joule-heated of different annealing currents (temperatures) is studied. From the magnetization curves and ferromagnetic resonance features obtained from the impedance spectra measured at different magnetic fields, a domain structure is proposed for the as-produced and Joule-heated microwires.