PERMANENT MAGNET, AND MOTOR AND POWER GENERATOR USING THE SAME

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In one embodiment, a permanent magnet includes : a composition expressed by RpFeqMrCusCo100-p-q-r-s (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 Th2Zn17 crystal phase, and a cell wall phase. A Cu concentration in the cell wall phase is in a range from 30 at % to 70 at %.