FeCoNiMnY 高熵薄膜的软磁性能及噪声抑制特性.

FeCoNiMnY films were prepared by electrochemical deposition. Their properties were characterized by XRD, VSM, and VNA. The effects of different Y element concentrations on the phase change, soft magnetic properties, and noise suppression were studied. The results show that element Y increases coercivity（from 12.09 kA/m to 21.7 kA/m） caused by grain growth. In addition, the lattice distortion induced by the addition of element Y increases the resistivity of high-entropy films（up to 336 μΩ mm）. The maximum power loss ratio of FeCoNiMnY high-entropy films could reach 0.84 at 6.1 GHz. The above results indicate that the FeCoNiMnY noise suppression sheet has great potential in anti-EMI applications at gigahertz frequencies. [ABSTRACT FROM AUTHOR]