A new experimental setup combining DSC, Raman and Brillouin spectroscopies was developed. In order to estimate its accuracy and stability a study of silicon and the alpha-beta quartz phase transition were performed. The data obtained demonstrated good agreement with previous studies using these three different techniques. For quartz, the temperature behavior of its 147 cm-1 Raman mode was studied in detail. Using a two-phonon coupling treatment of the Raman band, we show for the first time that its behavior can be well described by Landau theory of first-order phase transitions. The combined DSC-Raman-Brillouin technique is a powerful tool for material science capable of studying thermal, structural and elastic properties simultaneously.

中文翻译：

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组合差示扫描量热法、拉曼和布里渊光谱：一种用于材料研究的多尺度方法

开发了一种结合 DSC、拉曼和布里渊光谱的新实验装置。为了估计其准确性和稳定性，对硅和 α-β 石英相变进行了研究。获得的数据与之前使用这三种不同技术的研究非常吻合。对于石英，详细研究了其 147 cm-1 拉曼模式的温度行为。使用拉曼带的双声子耦合处理，我们首次证明其行为可以用一阶相变的朗道理论很好地描述。DSC-Raman-Brillouin 技术是一种强大的材料科学工具，能够同时研究热、结构和弹性特性。