Magnetic properties of cluster/thin-film laminated hybrids of FePt and FeCo alloys

Kenji Sumiyama, Shogo Sawa, Dong Liang Peng, Yuichiro Kurokawa, Takeshi Yamabuchi, Takehiko Hihara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Both FePt cluster/FeCo film and FeCo cluster/FePt film laminated hybrids have been prepared by combination of a plasma-gascluster- deposition and a helicon-plasma sputter-deposition and studied by X-ray diffraction and magnetization measurements. In FePt cluster/ FeCo film laminated hybrids, M S increases, while H C and BH MAX monotonically decrease with the FeCo film thickness. In FeCo cluster/FePt film laminated hybrids, M S, H C and BH MAX increase with the FeCo cluster layer thickness in comparison with those of simple FePt films. However, the remarkable improvement of their hard magnetic properties cannot be attained in these laminated hybrids owing to both the low packing density of FeCo clusters and the difficulty in the diffusion-control of Fe and Co atoms from FeCo to FePt layers.

Original languageEnglish
Pages (from-to)1563-1570
Number of pages8
JournalMaterials Transactions
Issue number9
Publication statusPublished - 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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