High-frequency magnetic properties of ferrite particulate films

S. Hashi, S. Yabukami, A. Maeda, N. Takada, S. Yanase, Y. Okazaki

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Ni-Zn ferrite particulate films fabricated by two room-temperature colloidal processing methods are characterized through high-frequency magnetization measurements. The particles for the colloidal solution are synthesized by coprecipitatation, affording particles 5-20 nm in size. The films prepared from the solution are shown to consist of 15-40 nm particles in a densely packed arrangement. The film prepared by electrophoretic deposition (EPD) is 12 μm thick with a comparatively smooth surface. Measurements of the frequency dependence of complex permeability for the films reveal an external bias field dependence and high magnetic resonance frequency (1 GHz), despite the films being isotropic.

Original languageEnglish
Pages (from-to)465-467
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume316
Issue number2 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Sep
Externally publishedYes

Keywords

  • Electrophoretic deposition (EPD)
  • Fine particle
  • Ni-Zn ferrite
  • Particulate film
  • Permeability
  • Vertical deposition (VD)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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