| abstract |
To provide a permanent magnet using Ce, which has a large magnetic anisotropy and is abundant in resources, among rare earth permanent magnets. In the present invention, the abundance ratio C3 / (C3 + C4) is 0.1 ≦ C3 / (C3 + C4) where the number of trivalent Ce atoms in the main phase particles is C3 and the number of tetravalent Ce atoms is C4. ) ≦ 0.5, a permanent magnet having high magnetic anisotropy resulting from the trivalent Ce state is obtained. [Selection] Figure 1 |