Microwave Properties of Sandwich Structure Based on Iron and Barium Nanoparticles

A.V. Babushkin

doi:10.4028/www.scientific.net/SSP.152-153.337

Paper Titles

Minimizing the Effect of Noise in High-Speed Reversal of a Magnetic Dipole
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A Microwave Study of Intrinsic Permeability of Mechanically Activated Powders of Fe-Based Alloys
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Bias Current Effect on Nonlinear Magnetoimpedance Response in Amorphous Wires with Circular Anisotropy
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Metamaterials Fabricated of Amorphous Ferromagnetic Microwires: Negative Microwave Permeability
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Microwave Properties of Sandwich Structure Based on Iron and Barium Nanoparticles
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Circular Magnetization Processes in CoFeNi Electroplated Wires
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The Spectrum of Magnetostatic Waves in Ferromagnetic with Moving Periodical Domain Structure
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Electron Spin Resonance in EuB₆
p.349

Magnetic Resonance and Nature of Magnetism in CeB₆
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Microwave Properties of Sandwich Structure Based on Iron and Barium Nanoparticles

Abstract:

The high frequency intrinsic and effective permeability was calculated for spherical iron and barium particles in a nonmagnetic matrix (epoxy resin) by using the combination of Landau-Lifshitz-Gilbert equation and extended Bruggeman’s effective medium theory with the consideration of the skin effect. It was found that the microwave properties of the composite were influenced by many parameters, such as damping parameter, volume fractions and size of magnetic components. The sandwich microwave absorber with reflection loss < −10 dB over the range of 6-22 GHz was achieved. The thickness of absorber is only 4.25 mm.