摘要Microwave magnetic properties are studied for rhombohedral structure NdNd2Fe17N3-δ with planar magnetic anisotropy. Its resin composites show the permeability μ0'=4.15 at low frequency, the natural resonance frequency fr=1.71GHz and the resonance bandwidth 6.66GHz. The calculated static permeability of Nd2Fe17N3-δ reaches 133. The microwave magnetic properties are determined by the c-axis anisotropy field, basal plane anisotropy field and high saturation magnetization. Based on microwave measurement and theoretical fitting on complex permeability spectra, Nd2Fe17N3-δ may be a promising microwave absorber with bandwidth wider than traditional hexaferrites materials in GHz ranges.
Abstract：Microwave magnetic properties are studied for rhombohedral structure NdNd2Fe17N3-δ with planar magnetic anisotropy. Its resin composites show the permeability μ0'=4.15 at low frequency, the natural resonance frequency fr=1.71GHz and the resonance bandwidth 6.66GHz. The calculated static permeability of Nd2Fe17N3-δ reaches 133. The microwave magnetic properties are determined by the c-axis anisotropy field, basal plane anisotropy field and high saturation magnetization. Based on microwave measurement and theoretical fitting on complex permeability spectra, Nd2Fe17N3-δ may be a promising microwave absorber with bandwidth wider than traditional hexaferrites materials in GHz ranges.
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