  Recently, it has been shown that two dimensional frustrated mixed-spin
systems with anisotropic exchange interactions display supersolid phases in
their ground state phase diagrams even in the absence of long-range
interactions. In this paper, using cluster mean field theory, we investigate
the effects of thermal fluctuations on the ground state phases of this kind of
systems and show that various thermal solids and thermal insulators emerge
around the ground state solid and Mott insulating phases. We also study the
thermodynamic properties and magnetocaloric effect of these systems and
demonstrate that at low temperatures, a large cooling rate is seen in the
vicinity of the solid-supersolid, solid-superfluid and Mott
insulator-superfluid critical points, with the large accumulation of the
entropy and the minimums of the isentropes. Our results show the sign change of
the magnetocaloric parameter inside the solids and the Mott insulator, which is
a characteristic of ordered phases.
