| 简介 |
A rare-earth permanent magnet is provided with a main phase which contains : one or more rare-earth elements R including Nd; one or more elements L selected from the group consisting of Co, Be, Li, Al, and Si; B; and Fe. A crystal forming the main phase belongs to P42/mnm. Some B atoms occupying the 4f site in the crystal are substituted with the atoms of element L. Distributions of the Nd atoms and the atoms of element L appear respectively with a plurality of periods along the C-axis direction of the crystal. The rare-earth permanent magnet is provided with an area in which the period of the atoms of element L and the period of the atoms of Nd coincide. |
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