Study on the specific heat of Y₃Al₅O₁₂ between 129 K and 573 K

We measured the isopiestic specific heat (CP) of Y3Al5O12 (YAG) by the differential scanning calorimetry aiming to obtain thermal parameters under cryogenic and room-temperature (RT) conditions. It was also found that the applicable temperature range of our numerical model for CP of YAG was updated to the range between 129 K and 573 K with below 3% error. Obtained parameters were verified by the comparative study with the first principles calculations. Discrepancy between the calculation value and measured value at 273 K was 0.017 J/gK in CP.