Thermal transport of Josephson junction based on two-dimensional electron gas

Abstract

We study the phase-dependent thermal transport of a short temperature-biased Josephson junction based on two-dimensional electron gas (2DEG) with both Rashba and Dresselhaus couplings. Except for thermal equilibrium temperature T, characters of thermal transport can also be manipulated by interaction parameter h 0 and the parameter |λRβR−λLβL|. A larger value and a sharper switching behavior of thermal conductance can be obtained if h 0 takes suitable values and |λRβR−λLβL| is larger. Finally, we propose a possible experimental setup based on the discussed Josephson junction and find that the temperature of the right superconducting electrode T R is influenced by the same three parameters in a similar way with thermal conductance. This setup may provide a valid method to select moderately-doped 2DEG materials and superconducting electrodes to control the change of temperature and obtain an efficient temperature regulator.