Effect of induced uniaxial magnetic anisotropy on ferromagnetic resonance frequency of Fe-Co alloy nanoparticle/polystyrene nanocomposite

Hiroaki Kura, Kotaro Hata, Tadaaki Oikawa, Migaku Takahashi, Tomoyuki Ogawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

An Fe-Co nanoparticle assembly with uniaxial nanostructure was successfully obtained as a nanocomposite with polystyrene, which was polymerized in a magnetic field, Hfix (50 kOe), from a mixture of the Fe-Co nanoparticles and styrene monomer. The easy axis of magnetization was parallel to Hfix and the uniaxial magnetic anisotropy field of the nanocomposite was estimated to be 2.5 kOe. The ferromagnetic resonance frequency of the nanocomposite reached 6.8 GHz, which was larger than that of the nanocomposite prepared without Hfix.

Original languageEnglish
Pages (from-to)65-68
Number of pages4
JournalScripta Materialia
Volume76
DOIs
Publication statusPublished - 2014 Apr

Keywords

  • Fe-Co nanoparticle
  • Ferromagnetic resonance
  • Induced uniaxial magnetic anisotropy
  • Nanocomposite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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