| 摘要 |
PROBLEM TO BE SOLVED: To provide high magnetic performance, by having ferromagnetic phase and grain boundary phase, matching ferromagnetic phase with grain boundary phase, and regularizing atomic arrangement between which an interface between ferromagnetic phase and grain boundary phase is put. SOLUTION: In a permanent magnet, ferromagnetic phase is matched with grain boundary phase and atomic arrangement is regularized between which an interface between ferromagnetic phase and grain boundary phase is put. The grain boundary phase has crystal form, face index and orientation index (crystal orientation) which are matched with those of the ferromagnetic phase. Crystal magnetic anisotropy at a location adjacent to the interface of the ferromagnetic phase is half or more of crystal magnetic anisotropy inside ferromagnetic particles. Crystal magnetic anisotropy at the outermost shell in the ferromagnetic particles is half or more of crystal magnetic anisotropy inside ferromagnetic particles that is higher than crystal magnetic anisotropy inside ferromagnetic particles. Further, crystal magnetic anisotropy within five atom layers from the outermost shell of the ferromagnetic particles is higher than crystal magnetic anisotropy inside ferromagnetic particles. |
