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A nanocomposite magnet represented by the general formula : (Fe1- mTM)100-x-y-z-w-n(B1-pCp) xRyTizVwMn, where T is Co and/or Ni; R is a rare-earth element; M is at least one element selected from Al, Si, Cr, Mn, Cu, Zn, Ga, Nb, Zr, Mo, Ag, Ta and W; and x, y, z, w, n, m and p satisfy : 10 at%%
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