FeCoNiMnY高熵薄膜的软磁性能及噪声抑制特性

作者：Wu Yuanyuan; Zhu Yingli^*; Li Xiangcheng^*; Chen Pingan; Zhu Boquan

来源：Journal of Functional Materials, 2023, 54(3): 3029-3033.

DOI：10.3969/j.issn.1001-9731.2023.03.005

• high entropy alloy film
• lattice distortion
• noise suppression
• resistivity
• soft magnetic performance

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. ? 2023 Journal of Functional Materials.

• 单位
  武汉科技大学