Heat capacity and thermodynamic functions of La(VO4)1–x(PO4)x solid solutions at low temperatures

Continuous monazite solid solutions La(VO4)1–х (PO4) х were prepared by ceramic technology. Heat capacities of three samples (х = 0.25, 0.50, and 0.75) were measured by adiabatic calorimetry at low temperatures (5–350 K). Thermodynamic functions were calculated in the range of temperatures studied.