Analysis of the Specific Heat of Ru Doped LiKSO 4 Close to Phase Transitions

The temperature dependence of the specific heat, C p , is analyzed for different percentages of ruthenium (Ru) content in LiKSO 4 using a power-law formula deduced from Ising model. For this analysis, data observed are taken from the literature and the values of the critical exponent for C p are extracted in the vicinity of the transition temperature ( T c = 708 K) within the incommensurate phase of Ru doped LiKSO 4 . Obtained values of the critical exponent of C p confirm in most cases above and below C p the critical exponent value predicted by the 3D Ising model for the doped LiKSO 4 . On this basis, the specific heat, C p , of some other molecular crystals can also be analyzed using the same power-law formula as studied here.