Effects of boron contents on magnetic properties of Fe-Co-B thin films

Inyoung Kim, Jongryoul Kim, Ki Hyeon Kim, Masahiro Yamaguchi

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


Effects of B on the magnetic properties and high frequency characteristics of the Fe7Co3 based thin films were investigated through the microstructural analysis. It was found that B addition was very effective in increasing anisotropy field and resistivity and in decreasing coercivity without much loss of saturation magnetization. These enhancements were shown to be strongly related to grain size, grain morphology and preferred orientations. As a result, a Fe55Co28B17 film with small dispersion angle of ∼ 0.5° showed the ferromagnetic resonance frequency of 3.3 GHz and a linear effective permeability of ∼350 up to 2 GHz.

Original languageEnglish
Pages (from-to)2706-2708
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number4 II
Publication statusPublished - 2004 Jul


  • Fe-Co-B thin film
  • Ferromagnetic resonance
  • High frequency
  • Soft magnetic property
  • Texture


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