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This paper discusses a new type of wire media based on amorphous ferromagnetic microwires. The combination of two effects, namely, a strong dispersion of the effective permittivity in metallic wire composites (resonance or plasmonic type) and giant magnetoimpedance effect in wires, will result in unusual property that an effective dielectric response may strongly depend on the wire magnetization which...
The effect of the external magnetic field on the dispersion of the effective permittivity in a single array of parallel CoFe-based amorphous wires is demonstrated by measuring the transmission/reflection spectra in free space in the frequency band of 0.9–17 GHz. The magnetic field is applied along the wires, sensitively changing their magnetisation and high-frequency impedance. Based on the measurements...
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