ホーム > 研究活動 > 2015年 > Rare-Earth Lean Hard Magnet Compound NdFe12 N

研究活動

Rare-Earth Lean Hard Magnet Compound NdFe12 N

Springer US

2015年6月23日(火)

Springer US ( http://dx.doi.org/10.1007/s11837-015-1421-9 )
Y. Hirayama, T. Miyake, K. Hono

Abstract

Among various ThMn12-type rare-earth iron compounds, NdFe11TiN has been known for its large magnetization and high anisotropy field, although their values are smaller than those of Nd2Fe14B and Sm2Fe17N3. Recent first-principles calculations predicted that NdFe12N has a substantially larger magnetization than NdFe11TiN with a comparable anisotropy field. To validate this prediction, the NdFe12N x phase was successfully synthesized by nitriding the NdFe12 film that was grown on a W underlayer on a MgO(001) substrate. The NdFe12N x phase was found to have a saturation magnetization, anisotropy field, and Curie temperature superior to those of Nd2Fe14B.

その他特記事項

This work was supported in part by the Elements Strategy Initiative Project under the auspice of MEXT and JST, CREST.


研究活動

元素戦略拠点

触媒・電池元素戦略拠点
触媒・電池元素戦略研究拠点 (京都大学)
東工大元素戦略拠点
東工大元素戦略拠点 (東京工業大学)
構造材料元素戦略研究拠点
構造材料元素戦略研究拠点 (京都大学)
高効率モーター用磁性材料技術研究組合
高効率モーター用 磁性材料技術研究組合