The electric properties of low-magnetic-loss magnetic composites containing Zn-Ni-Fe particles

Nobuhiro Hidaka, Masayuki Ishitsuka, Yasushi Shirakata, Akinobu Teramoto, Tadahiro Ohmi

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Recently, magnetic composites consisting of magnetic particles dispersed in a polymer matrix have been widely discussed for miniaturizing high-frequency electronic components such as antennae. Previously, we investigated the influence of the manufacturing process on the homogeneous dispersion of magnetic particles in the polymer and on the magnetic properties of the magnetic composites. In order to miniaturize electronic components, it is crucial to be able to independently control the permeability and permittivity in magnetic composites. This paper investigates the anisotropy and frequency dependence of the dielectric properties of magnetic composites fabricated from 20vol% Zn 5Ni75Fe20 flaked particles. The permittivity of magnetic composites fabricated from Zn5Ni75Fe 20 flaked particles is anisotropic: at 1GHz, the relative permittivities parallel and perpendicular to the plane of the specimens are 27.2 and 16.9, respectively. The permittivity varied little between frequencies of 50MHz and 10GHz.

Original languageEnglish
Article number436009
JournalJournal of Physics Condensed Matter
Issue number43
Publication statusPublished - 2009 Nov 20

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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