Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules

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	Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules
	H. Wang; H. H. Guo; Y. Y. Dai; D. Y. Geng; Z. Han; D. Li; T. Yang; S. Ma; W. Liu; Z. D. Zhang
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:8
摘要	Electromagnetic-wave (EMW) absorption by Ni/C nanocapsules with similar permeability but different permittivity mainly due to differences in the graphite-shell thickness has been investigated. The optimal working frequency could appear at S-band and C-band and considerable strong EMW absorption was achieved. For the optimal Ni/C nanocapsules, a reflection loss exceeding -20 dB was reached from 2.6 to 8.2 GHz with a maximum value of -40 dB at 3 GHz. The improved absorption can be attributed to an optimal electromagnetic match and an enhanced dipole polarization upon increasing of shell thickness. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4747811]
部门归属	[wang, han] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;wang, h (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china.;yangteng@imr.ac.cn; songma@imr.ac.cn
关键词	Microwave-absorption Carbon Nanotubes Complex Permittivity X-band Composites Nanoparticles Ferrite
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60280
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Wang,H. H. Guo,Y. Y. Dai,et al. Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules[J]. Applied Physics Letters,2012,101(8).
APA	H. Wang.,H. H. Guo.,Y. Y. Dai.,D. Y. Geng.,Z. Han.,...&Z. D. Zhang.(2012).Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules.Applied Physics Letters,101(8).
MLA	H. Wang,et al."Optimal electromagnetic-wave absorption by enhanced dipole polarization in Ni/C nanocapsules".Applied Physics Letters 101.8(2012).