Negative permeability spectra in Permalloy granular composite materials

Applied Physics Letters 88 巻 17 号 172502-1-172502-3 頁 2006-04-25 発行
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タイトル ( eng )
Negative permeability spectra in Permalloy granular composite materials
作成者
Kasagi Teruhiro
Hatakeyama Kenichi
収録物名
Applied Physics Letters
88
17
開始ページ 172502-1
終了ページ 172502-3
抄録
Complex permeability spectra of Permalloy granular composite materials have been studied in the microwave frequency range. The heat-treated Permalloy particles in the air at several hundreds of °C have a high surface electrical resistance; the eddy current effect in the high frequency permeability spectra can be suppressed in the composite structure containing the percolated particles. A negative permeability has been obtained above 5 GHz due to the natural magnetic resonance in the 70 vol % particle content composite material. In this content, electrical permittivity spectra show a nonmetallic characteristic. This permeability dispersion can be applied for the left-handed media.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Institute of Physics
発行日 2006-04-25
権利情報
Copyright (c) 2006 American Institute of Physics.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0003-6951
[DOI] 10.1063/1.2198113
[NCID] AA00543431
[DOI] http://dx.doi.org/10.1063/1.2198113