PERMANENT MAGNET INCLUDING MULTIPLE FERROMAGNETIC PHASES AND METHOD FOR PRODUCING THE MAGNET

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An iron-based rare earth alloy magnet has a composition represented by the general formula : (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of : 10 at%