Rare earth permanent magnet and rare earth permanent magnet of number bath method

A rare earth permanent magnet comprising a main phase containing : one or more elements R selected from a group consisting of Nd and Pr; one or more elements L selected from a group consisting of Co, Be, Li, Al and Si; one or more elements A selected from a group consisting of Tb, Sm, Gd, Ho and Er; Fe; and B, wherein crystals forming the main phase belong to P4 2 /mnm, and some B atoms occupying a 4f site are substituted by atoms of the elements L.