In the present study, we propose a method for realizing the thermo-magnetic cycle with a gas-liquid two-phase flow by boiling a binary mixture of temperature sensitive magnetic fluid (TSMF) with an organic liquid of n-hexane, which has a lower boiling point. The boiling point of the fluid was adjusted below the boiling point of TSMF. From results of experiment, it was found that with the two-phase flow, the driving force was highly enhanced by applying magnetic field, showing substantial decrease in spatial averaging magnetization by n-hexane gas bubbles. Owing to sufficient magnetic driving force, it was observed that a self-circulation state of the device is possible, yielding that the proposed binary mixture of TSMF enables to design the self-circulation heat transport system by utilization of two-phase flow, which can operate only with its own magnetic driving force provided from temperature difference.