A rare earth magnet, a motor, and a motor device comprising

PROBLEM TO BE SOLVED : To provide a rare earth magnet capable of maintaining a maximum energy product even after high temperature exposure exceeding 150°C, and excellent in the temperature cycle characteristics repeating temperature rising and temperature lowering, and to provide an electric motor including the rare earth magnet, and a device including the electric motor.SOLUTION : In an R-T-B rare earth magnet containing crystal particles 1 having a tetragonal RTB compound (where, R is a rare earth element, T is an iron group element, and B is boron) as the main phase, metal nanowires 2 are dispersed at least into the crystal particles 1.