| abstract |
In one embodiment, a permanent magnet includes a composition expressed by R p Fe q M r Cu s Co 100-pqrs (R is a rare earth element, M is at least one element selected from Zr, Ti and Hf, 10.8 ≤ p ≦ 13.5 at%, 28 ≦ q ≦ 40 at%, 0.88 ≦ r ≦ 7.2 at% and 3.5 ≦ s ≦ 13.5 at%); and a metallic structure including a cell phase having a Th 2 Zn 17 crystal phase and a cell wall phase. A Cu concentration in the cell wall phase is in a range of 30 at% to 70 at%. |