Negative permeability spectra in Permalloy granular composite materials | Zendy

Teruhiro Kasagi | Zendy; Takanori Tsutaoka | Zendy; Kenichi Hatakeyama | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Negative permeability spectra in Permalloy granular composite materials

Author(s) -

Teruhiro Kasagi,

Takanori Tsutaoka,

Kenichi Hatakeyama

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2198113

Subject(s) - permalloy , materials science , permittivity , composite number , permeability (electromagnetism) , composite material , spectral line , microwave , nuclear magnetic resonance , magnetization , magnetic field , dielectric , chemistry , optoelectronics , physics , quantum mechanics , astronomy , membrane , biochemistry

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 5GHz due to the natural magnetic resonance in the 70vol% 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.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research