MAGNET MATERIAL, PERMANENT MAGNET, MOTOR AND ELECTRIC GENERATOR

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In an embodiment, a magnet material includes a composition represented by Rx(Nb1-pZrp)yBZ(T1-qMq)100-x-y-z, where R is an element selected from rare earth elements and 50 at. % or more of R is Sm, T is Fe alone or a mixture of Fe and Co containing 50 at. % or more of Fe, M is at least one element selected from Ni, Cu, V, Cr, Mn, Al, Si, Ga, Ta and W, p is 0≦p≦0.5, q is 0≦q≦0.2, x is 4≦x≦15 at. %, y is 1≦y≦4 at. %, z is 0.001≦z<4 at. %, and a structure having a TbCu7 crystal phase as a main phase.