Magneto-impedance measurements (MI) were carried out on thin-films of Cu_100-xMn_xAu_13.5 (x = 6.75 and 13.5). The sample with × = 6.75 (13.5) undergoes a phase transition to a spin-glass state below a glass temperature of about T_G = 31 K (55 K). The MI measurements were carried out for temperatures (T) from 300 K down to 5 K in applied magnetic fields in the range of ± 3.5 kOe and for an ac electric current with frequency of 9.0 MHz. Short-range interaction and spin-fluctuations yielded non-vanishing values for the MI data for all values of T. The transverse magnetic permeability (μ_T) was obtained for both sample compositions demonstrating that MI is a suitable technique to study canonical spin-glasses in the MHz regime. Moreover, it was observed that the spin-fluctuations in very short time scale (∼10⁻⁷ s) are important down to the lowest temperature investigated of 5 K. The transverse magnetic susceptibility, μ_T, showed a minimum near the freezing temperature.

在 Cu ₁₀₀ - _x Mn _x Au _13.5（x  = 6.75 和 13.5）薄膜上进行磁阻抗测量 (MI )。× = 6.75 (13.5)的样品在 低于约T _G  = 31 K (55 K)的玻璃温度下经历相变到自旋玻璃态。MI 测量是针对从 300 K 到 5 K 的温度 ( T ) 在 ± 3.5 kOe 范围内的外加磁场和频率为 9.0 MHz 的交流电流进行的。短程相互作用和自旋波动为所有T值的 MI 数据产生非零值。横向磁导率（μ_T ) 获得了两种样品组合物，证明 MI 是研究 MHz 范围内规范自旋玻璃的合适技术。此外，观察到在非常短的时间尺度（~10 ^-7 s）内的自旋波动很重要，直到所研究的最低温度 5 K。横向磁化率μ _T在接近冻结温度时显示最小值。