Fig. 9: The mixing Gibbs free energy of (RE10.25RE20.25Yb0.25Lu0.25)2Si2O7 at different temperatures.

The calculated mixing enthalpies and mixing entropy of various (RE10.25RE20.25Yb0.25Lu0.25)2Si2O7 are all listed in the figure, respectively.

The calculated mixing enthalpies and mixing entropy of various (RE10.25RE20.25Yb0.25Lu0.25)2Si2O7 are all listed in the figure, respectively.