A rotor, which is cylindrically formed of a magnetic body and in which a plurality of magnet embedding holes are annularly formed at predetermined intervals in a circumferential direction, plate-like permanent magnets being embedded in the magnet embedding holes, includes a flux barrier that is disposed toward an outer circumference of the rotor from an circumferential end of each of the magnet embedding holes, and a slit that is disposed to be adjacent to the flux barrier, in which the slit is a long hole extending in a direction of becoming distant from the flux barrier, from an inner circumferential side of the rotor toward an outer circumferential side thereof, and a notch portion is provided on the outer circumference of the rotor opposing the flux barrier in a diameter direction of the rotor.