Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802293 | Journal of Magnetism and Magnetic Materials | 2009 | 5 Pages |
Abstract
Magnetic and electromagnetic wave absorption properties of α-Fe(N) nanoparticles, synthesized by chemical vapor condensation and then kept in air for 5 years, have been studied. The magnetic properties of the α-Fe(N) nanoparticles were slightly decreased because of the degradation in air. A slight increase in the thickness of oxide shells results in an excellent dielectric loss. The α-Fe(N) nanoparticles exhibited outstanding reflection loss (RL<−20 dB) in a 4.5–18 GHz for the absorber thicknesses of ~1–3.1 mm, and an optimal RL of −37.5 dB was obtained at 10.4 GHz with an absorber thickness of 1.6 mm. The broadest bandwidth (RL<−10 dB) from 13.3 to 17.4 GHz, covering almost the whole Ku-band, is obtained for a 1.2 mm layer.
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Condensed Matter Physics
Authors
D. Li, C.J. Choi, Z. Han, X.G. Liu, W.J. Hu, J. Li, Z.D. Zhang,