Abstract
Two-component Bose condensates with repulsive interaction are stable when g1g2 > g212 is satisfied. By tuning the interactions, we show that the instability corresponding to Bose–Bose phase separation always happens at a higher temperature than that corresponding to Bose–Fermi phase separation. Moreover, we find the transition temperatures TDW of both the supersolid and coherence peak at kDW are enhanced in the mixtures studied. These will make the observation of a supersolid in experiments more reachable.
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