Correlation between the magneto-impedance and ferromagnetic resonance responses in nanocrystalline microwires

Results on the correlation between ferromagnetic resonance and magneto-impe dance responses in soft magnetic Fe-based microwires with nanocrystalline s tructure are reported for the first time. The evolution of the magneto-impe dance effect with structural changes starting from the as-cast amorphous st ate up to nanocrystallization and further crystallization is interpreted th rough changes induced in the surface magnetic anisotropy and magnetization process of such wires, that are studied bg means of ferromagnetic resonance .