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论文类型：期刊论文

发表时间：2008-01-07

发表刊物：APPLIED PHYSICS LETTERS

收录刊物：SCIE、EI、ESI高被引论文

卷号：92

期号：1

ISSN号：0003-6951

摘要：Ni/polyaniline (PANi) nanocomposites were prepared by chemical polymerization, and electromagnetic characteristics were then studied at 2-18 GHz. The permittivity of the Ni/PANi nanocomposite presents dual dielectric relaxations with increasing content of PANi to over 15.6 wt %, which is ascribed to a cooperative consequence of the core/shell interfaces and the dielectric PANi shells. Additionally, the permeability presents a strong natural resonance around 2-8 GHz, which is dominant among microwave magnetic loss. The proper matching of the permittivity and the permeability contributes to enhanced microwave absorption. (c) 2008 American Institute of Physics.