Thin-film Wave Absorbers with a Double Ferromagnetic Layer Structure and Their Magnetic Resonance Frequency Modulation

XU Ziyang; LI Wei; WANG Feng; LIU Xing

doi:10.19554/j.cnki.1001-3563.2025.17.002

PDF(4816 KB)

Packaging Engineering ›› 2025, Vol. 46 ›› Issue (17) : 10-18. DOI: 10.19554/j.cnki.1001-3563.2025.17.002

Special Topic on Lightweight Broadband Electromagnetic Composite Materials

Thin-film Wave Absorbers with a Double Ferromagnetic Layer Structure and Their Magnetic Resonance Frequency Modulation

XU Ziyang^1a,b, LI Wei^1b,2,*, WANG Feng^1a,2, LIU Xing^1b,2

Author information +

History +

Abstract

The work aims to obtain high permeability wave absorbers and magnetic wave-absorbing materials with designable broadband designable wave-absorbing properties by adjusting the thickness ratio of the double ferromagnetic layer. Magnetron sputtering method was used to sputter control the sputtering time of Fe50Co50 and Ni target and then regulate the thickness ratio of Fe₅₀Co₅₀ and Ni to prepare (Fe₅₀Co₅₀/Ni/SiO₂)_n multilayer structured magnetic thin-film materials with different thickness ratios, and the (Fe₅₀Co₅₀/Ni/SiO₂)_n thin films were ultrasonically crushed by dissolving them into an alcohol aqueous solution to obtain the magnetic absorbers with different frequencies. The in-plane anisotropy of the films was regulated between 3 819~8 992 A/m and the ferromagnetic resonance frequency was achieved between 1.3 and 4.5 GHz during the increase of the Fe₅₀Co₅₀ to Ni thickness ratio from 0∶4 to 4∶0. The method of regulating the thickness ratio of Fe₅₀Co₅₀ to Ni layer inside the magnetic film can effectively increase the saturation magnetisation strength and the in-plane anisotropy field of the material, which in turn regulates the ferromagnetic resonance frequency of the wave-absorbing material and broadens the frequency band of application of this material system.

Key words

magnetron sputtering / frequency modulation / ferromagnetic resonance loss

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

XU Ziyang, LI Wei, WANG Feng, LIU Xing. Thin-film Wave Absorbers with a Double Ferromagnetic Layer Structure and Their Magnetic Resonance Frequency Modulation[J]. Packaging Engineering. 2025, 46(17): 10-18 https://doi.org/10.19554/j.cnki.1001-3563.2025.17.002

References

[1] JIN X W, LI T, SHI H G, et al.MHz Cut-off Frequency and Permeability Mechanism of Iron-Based Soft Magnetic Composites[J]. Chinese Physics B, 2024, 33(9): 097501.
[2] KIM S H, LEE S Y, ZHANG Y L, et al.Carbon-Based Radar Absorbing Materials Toward Stealth Technologies[J]. Advanced Science, 2023, 10(32): 2303104.
[3] CHEN J B, LIANG X H, LIU W, et al.Mesoporous Carbon Hollow Spheres as a Light Weight Microwave Absorbing Material Showing Modulating Dielectric Loss[J]. Dalton Transactions, 2019, 48(27): 10145-10150.
[4] ZHENG W, YE W X, YANG P G, et al.Recent Progress in Iron-Based Microwave Absorbing Composites: A Review and Prospective[J]. Molecules, 2022, 27(13): 4117.
[5] ZHAO C X, WANG H, BU Y Y, et al.Structures, Principles, and Properties of Metamaterial Perfect Absorbers[J]. Physical Chemistry Chemical Physics, 2023, 25(44): 30145-30171.
[6] TANG K K, LONG F H, ZHANG F H, et al.Research Progress on High-Temperature-Resistant Electromagnetic Wave Absorbers Based on Ceramic Materials: A Review[J]. Nanomaterials, 2025, 15(4): 268.
[7] LI H Y, LI X H, CHENG M L, et al.Super Magnetic Loss Induced by Tunable Damping Coefficient through Ni Nanoparticles Size Matching in Magnetic Carbon[J]. Carbon, 2023, 211: 118117.
[8] VIALA B, INTURI V R, BARNARD J A.Effect of Magnetic Annealing on the Behavior of FeTaN Films[J]. Journal of Applied Physics, 1997, 81(8): 4498-4500.
[9] WU L H, SHI S H, LIU J, et al.Multicolored Microwave Absorbers with Dynamic Frequency Modulation[J]. Nano Energy, 2023, 118: 108938.
[10] KUANG D T, SUN X G, DENG L W, et al.Achieving Excellent Tunability of Magnetic Property and Microwave Absorption Performance of FeZn-C Core-Shell Nanoparticles by Designing the Fe/Zn Ratio[J]. Advanced Powder Technology, 2023, 34(2): 103931.
[11] BOBROVSKII S Y, IAKUBOV I T, LAGARKOV A N, et al.Adjustable Microwave Magnetic Spectra of Metamaterials Based on Ferromagnetic Film Laminates[J]. IEEE Transactions on Magnetics, 2017, 53(10): 2800906.
[12] CHAI G Z, YANG Y C, ZHU J Y, et al.Adjust the Resonance Frequency of (Co₉₀Nb10/T_a)n Multilayers from 1.4 to 6.5 GHz by Controlling the Thickness of Ta Interlayers[J]. Applied Physics Letters, 2010, 96: 012505.
[13] TRAN V T, FU C C, LI K M.Predicting Magnetization of Ferromagnetic Binary Fe Alloys from Chemical Short Range Order[J]. Computational Materials Science, 2020, 172: 109344.
[14] YANG Q M, XU Q M, FANG Y Z, et al.Crystallization Mechanism of Fe-Based Nanocrystalline Alloy[J]. Acta Physica Sinica, 2009, 58(6): 4072.
[15] WANG H, ZHOU J Y, WANG Y N, et al.Resonance Frequency of Ferromagnetic/Ferromagnetic Bilayers with Bilinear and Biquadratic Coupling[J]. Indian Journal of Physics, 2021, 95(11): 2359-2364.
[16] PATERAS A, HARDER R, MANNA S, et al.Room Temperature Giant Magnetostriction in Single-Crystal Nickel Nanowires[J]. NPG Asia Materials, 2019, 11: 59.
[17] KHAN I, HONG J S.Magnetic Anisotropy of C and N Doped Bulk FeCo Alloy: A First Principles Study[J]. Journal of Magnetism and Magnetic Materials, 2015, 388: 101-105.
[18] DU Y W, SANG H, XU Q Y, et al.Intergranule Interaction in Magnetic Granular Films[J]. Materials Science and Engineering: A, 2000, 286(1): 58-64.
[19] NANDWANA V, ZHOU R Y, MOHAPATRA J, et al.Exchange Coupling in Soft Magnetic Nanostructures and Its Direct Effect on Their Theranostic Properties[J]. ACS Applied Materials & Interfaces, 2018, 10(32): 27233-27243.
[20] LESLIE-PELECKY D L, RIEKE R D. Magnetic Properties of Nanostructured Materials[J]. Chemistry of Materials, 1996, 8(8): 1770-1783.
[21] DO H M, LE T H P, TRAN D T, et al. Magnetic Interaction Effects in Fe₃O₄@CoFe₂O₄ Core/Shell Nanoparticles[J]. Journal of Science: Advanced Materials and Devices, 2024, 9(1): 100658.
[22] MENG Y, PANG S J, CHANG C T, et al.Magnetic Softening of the Fe₈₃Si₃B₁₁P2Cu1 Amorphous/Nanocrystalline Alloys with Large-Size Pre-Existing Α-Fe Grains by High Heating-Rate Annealing[J]. Journal of Materials Research and Technology, 2022, 20: 161-168.
[23] SOHN J, HAN S H, YAMAGUCHI M, et al.Tunable Electromagnetic Noise Suppressor Integrated with a Magnetic Thin Film[J]. Applied Physics Letters, 2006, 89(10): 103501.
[24] LUO C Y, LIU X, WANG F, et al.High Permeability in Broadband of Co-Sputtered [Fe-Fe₂₀Ni80/Cr]n Multilayer Films[J]. Journal of Wuhan University of Technology-Mater Sci Ed, 2024, 39(2): 410-416.
[25] FILIPKOWSKI M E, KREBS J J, PRINZ G A, et al.Giant Near-90 Degrees Coupling in Epitaxial CoFe/Mn/CoFe Sandwich Structures[J]. Physical Review Letters, 1995, 75(9): 1847-1850.
[26] SHI H C, TANG B, LIU C F.Effect of Interlayer Exchange Coupling Interaction on Topological Phase of a Bilayer Honeycomb Heisenberg Ferromagnet[J]. Acta Physica Sinica, 2024, 73(13): 137501.
[27] LIU X D, HUANG Y, DING L, et al.Synthesis of Covalently Bonded Reduced Graphene Oxide-Fe₃O₄ Nanocomposites for Efficient Electromagnetic Wave Absorption[J]. Journal of Materials Science & Technology, 2021, 72: 93-103.