We measured the isopiestic specific heat (C_P) 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 C_P 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 C_P.

中文翻译：

---

Y ₃ Al ₅ O ₁₂在129 K和573 K之间的比热研究

我们通过差示扫描量热法测量了Y ₃ Al ₅ O ₁₂（YAG）的等密度比热（C _P），旨在获得低温和室温（RT）条件下的热参数。我们还发现，我们的YAG C _P数值模型的适用温度范围已更新为129 K和573 K之间的范围，误差低于3％。通过第一项原理计算的比较研究验证了获得的参数。C _P中的计算值与在273 K下的测量值之间的差异为0.017 J / gK 。