Chemical synthesis of sub-micrometer- to nanometer-sized magnetic FeCo dice

Daisuke Kodama, Kozo Shinoda, Kimitaka Sato, Yoshihiro Konno, Raphael J. Joseyphus, Kenichi Motomiya, Hideyuki Takahashi, Takatoshi Matsumoto, Yoshinori Sato, Kazuyuki Tohji, Balachandran Jeyadevan

Research output: Contribution to journalArticlepeer-review

125 Citations (Scopus)


A simple technique to synthesize composition and size-controlled cubic FeCo particles, ranging in size from a few hundred to tens of nanometers at 403 k within one hour using a modified polyol process was investigated. The metal salts were dissolved in liquid polyol under an inert atmosphere and heated to elevated temperatures to obtain fine metal or alloy nanoparticles. The black precipitate obtained was recovered from the polyol, and washed and stored in ethanol. X-ray fluorescence (XRF) analysis was carried out to determine the final composition of the powders. The hyperfine field of the ordered FeCo was found to be lower than the disordered FeCo, with the maximum decrease at the equiatomic composition.

Original languageEnglish
Pages (from-to)3154-3159
Number of pages6
JournalAdvanced Materials
Issue number23
Publication statusPublished - 2006 Dec 4

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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