Magnetism of Nd-Fe films as a model of grain boundary phase in Nd-Fe-B permanent magnets

Akimasa Sakuma, Tsuneaki Suzuki, Takahiro Furuuchi, Toshiyuki Shima, Kazuhiro Hono

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

To clarify the magnetism of an amorphous grain boundary (GB) phase in Nd-Fe-B sintered magnets, the magnetic properties of Nd100-xFex films with various compositions have been investigated both experimentally and theoretically. The model films exhibit ferromagnetism at room temperature when the Nd content is lower than 70 at. %. First-principles calculations indicate ferromagnetism in fcc Nd-Fe alloys for x < 70, which supports recent experimental works on the intergrain exchange coupling of Nd-Fe-B sintered magnets.

Original languageEnglish
Article number013002
JournalApplied Physics Express
Volume9
Issue number1
DOIs
Publication statusPublished - 2016 Jan

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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