NdFe12Nx hard-magnetic compound with high magnetization and anisotropy field

Y. Hirayama, Y. K. Takahashi, S. Hirosawa, K. Hono*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)

Abstract

The NdFe12Nx compound with a ThMn12 structure (space group I4/mmm) was successfully synthesized by nitriding an NdFe12 layer grown on a W underlayer on a single-crystalline MgO(001) substrate. The c-axis expanded from 0.480 to 0.492 nm while the a-axis showed a slight contraction from 0.852 to 0.849 nm after the nitriding. Excellent intrinsic hard magnetic properties of μ0Ms ∼ 1.66 ± 0.08 T, μ0Ha ∼ 8 T, and Tc ∼ 550 °C, which are superior to those of Nd2Fe14B, were obtained.

Original languageEnglish
Pages (from-to)70-72
Number of pages3
JournalScripta Materialia
Volume95
Issue number1
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Hard magnet
  • Nd-Fe-N
  • Permanent magnet
  • ThMn structure

ASJC Scopus subject areas

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

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