  The Hund coupling in multiorbital Hubbard systems induces spin freezing and
associated Hund metal behavior. Using dynamical mean field theory, we explore
the effect of local moment formation, spin and charge excitations on the
entropy and specific heat of the three-orbital model. In particular, we
demonstrate a substantial enhancement of the entropy in the spin-frozen metal
phase at low temperatures, and peaks in the specific heat associated with the
activation of spin and charge fluctuations at high temperature. We also clarify
how these temperature scales depend on the interaction parameters and filling.
