Abstract
In this research, a series of [Fe80Ni20-O/NiZn-ferritn multilayer thin films with different insulation layer thickness were prepared by magnetron sputtering at room temperature. The high frequency soft magnetic properties of [Fe80Ni20-O/NiZn-ferritn multilayer thin films were investigated. It was found that the in-plane magnetic anisotropy field (Hk) and saturation magnetizations (4πMs) can be adjusted by changing the insulation layer thickness, and the optimal Hk and 4πMs can be obtained as the insulation layer thickness of 2.5 nm. The adjustment of insulation layer thickness is essential to obtain low coercivity (Hc) and high permeability (μ) of the multilayer thin films. The measured resistivity (ρ) of [Fe80Ni20-O/NiZn-ferritn multilayer thin films was increased from 211 to 448 μΩcm with increasing the insulation layer thickness.
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