Similar to the HeatCapacitor block in the MSL, except that the specific heat capacity is allowed to vary according to the temperature, c_v(T)=c_p(T). The heat capacity is the sum of those determined via the Debye model (lattice phonons) and the Fermi-Dirac distribution (conduction electrons). This approach is fitting for many solids, both conducting (Ne>0) and insulating (Ne=0).