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Temperature dependence of post-sintered annealing on magnetic properties of intergranular phase in Nd-Fe-B permanent magnet

Journal of Applied Physics

2015年4月8日(水)

Journal of Applied Physics ( Volume: 117, page:17B313, year: 2015(DOI: 10.1063/1.4916938) )
Akira Yasui , Tetsuya Nakamura , Yoshinori Kotani , Tomoki Fukagawa , Takeshi Nishiuchi, Satoshi Hirosawa

Abstract

Following the finite-temperature ab initio calculation framework based on the relativistic disordered local moments [J. B. Staunton et al., Phys. Rev. Lett. 93, 257204 (2004); Phys. Rev. B 74, 144411 (2006)], we computationally demonstrate the possibility of doping-enhanced coercivity at high-temperatures, taking YCo5 as a working material in order to extract the 3d-electron part of the electronic structure of the rare-earth permanent magnets. Alkaline-earth dopants are shown to be the candidates to realize the proposed phenomenon.

その他特記事項

The part of this work was supported by the Elements Strategy Initiative Center for Magnetic Materials (ESICMM) under the outsourcing project of the Ministry of Education, Culture, Sports, Science, and Technology, Japan.


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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