Fabrication and characterization of highly textured Nd-Fe-B thin film with a nanosized columnar grain structure

C. Y. You, Y. K. Takahashi, K. Hono

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15 Citations (Scopus)

Abstract

We have fabricated a highly textured Nd-Fe-B thin film with a hard magnetic performance: Mr =1.39 T, Hc =827 kA/m, and (BH) max =358 kJ/ m3. The microstructure of the film was characterized in detail by cross-sectional and plane-view transmission electron microscopy observations. The film consisted of nanosized columnar grains with an average size of 40 nm and included a strong diffraction contrast along the grain boundary. A high resolution energy filtered image indicated that Nd was enriched discontinuously along the grain boundary, causing an unsuitable decoupling among the Nd2 Fe14 B grains, which is in agreement with the pinninglike feature of the initial magnetization curve.

Original languageEnglish
Article number043901
JournalJournal of Applied Physics
Volume108
Issue number4
DOIs
Publication statusPublished - 2010 Aug 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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