Co-Zr-Mo-Ni アモルファス薄膜の磁気的微細構造と軟磁性（動的微分磁化率の計測）

抄録

To evaluate the magnetic inhomogeneities normally represented as magnetic skew and ripple, a systematic experimental investigation was carried out using the dynamic differential susceptibility measurement proposed by H. Hoffmann for multilayered Co₇₉Zr₁₀Mo₉Ni₂ amorphous films. Influence of the local magnetic anisotropy on the effective permeability, μ_eff, of the films is broadly discussed in connection with the magnetic skew and ripple. The magnitude of the μ_eff at the low frequency region less than 1 MHz is strongly dependent on the degree of the long period fluctuation of the local magnetization (skew) and the magnitude of the anisotropy field. To realize excellent soft magnetic properties in films at high frequency (10 MHz), it is suggested that the decrement of the magnetic inhomogeneities due to the short period fluctuation of the local magnetization are important.