High-Frequency and Microwave Magnetic Properties of Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ Spinel Ferrite Ceramics
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866918255868772352 |
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| author | Kempa, M. Bovtun, V. Kukhar, V. Solopan, S. Belous, A. Vyunov, O. Yakymenko, Y. Kamba, S. |
| author_facet | Kempa, M. Bovtun, V. Kukhar, V. Solopan, S. Belous, A. Vyunov, O. Yakymenko, Y. Kamba, S. |
| contents | Magnetic properties of the Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ (NZF) spinel ferrite ceramics were studied over a broad frequency range (1 MHz - 50 GHz). Between 10 MHz and 2 GHz, strong temperature-dependent resonance-like magnetic permeability dispersion was observed and attributed to the magnetic domain-wall dynamics. It is responsible for the high magnetic losses, absorption and shielding ability of NZF, and provides high nonlinearity and tunability of the permeability under a weak magnetic field. The attenuation constant of NZF is comparable to those of dielectric-conductor composites and giant permittivity materials. In the microwave range (2-50 GHz), three magnetic excitations dependent on a weak magnetic field were revealed and related to magnons. The lowest-frequency magnon (<10 GHz) is attributed to the natural ferromagnetic resonance, two others are excited between 28 and 44 GHz. Interaction of the magnons and magneto-dielectric resonance modes with electromagnetic waves provides high absorption and shielding efficiency in the GHz range, including 5G and 6G communication frequencies. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_20477 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-Frequency and Microwave Magnetic Properties of Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ Spinel Ferrite Ceramics Kempa, M. Bovtun, V. Kukhar, V. Solopan, S. Belous, A. Vyunov, O. Yakymenko, Y. Kamba, S. Materials Science Magnetic properties of the Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ (NZF) spinel ferrite ceramics were studied over a broad frequency range (1 MHz - 50 GHz). Between 10 MHz and 2 GHz, strong temperature-dependent resonance-like magnetic permeability dispersion was observed and attributed to the magnetic domain-wall dynamics. It is responsible for the high magnetic losses, absorption and shielding ability of NZF, and provides high nonlinearity and tunability of the permeability under a weak magnetic field. The attenuation constant of NZF is comparable to those of dielectric-conductor composites and giant permittivity materials. In the microwave range (2-50 GHz), three magnetic excitations dependent on a weak magnetic field were revealed and related to magnons. The lowest-frequency magnon (<10 GHz) is attributed to the natural ferromagnetic resonance, two others are excited between 28 and 44 GHz. Interaction of the magnons and magneto-dielectric resonance modes with electromagnetic waves provides high absorption and shielding efficiency in the GHz range, including 5G and 6G communication frequencies. |
| title | High-Frequency and Microwave Magnetic Properties of Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ Spinel Ferrite Ceramics |
| topic | Materials Science |
| url | https://arxiv.org/abs/2506.20477 |