The structural relaxation behavior of Sb-Se chalcogenide glasses (Sb content up to 6 at%) was comprehensively studied using differential scanning calorimetry, viscosity measurements, and Raman spectroscopy. Three distinct types of calorimetric experiments were employed to estimate and refine the parameters of the relaxation model involving nonlinearity and nonexponentiality. Viscosity measurements in the glass transition range confirmed similar compositional dependences of the activation energies for structural relaxation and viscous flow. Raman spectroscopy provided insights into the structural changes associated with relaxation, highlighting the formation of SbSe_3/2 pyramids and their effect on crosslinking within the glassy matrix. These findings elucidate the interplay between composition, thermal history, and relaxation behavior, offering predictive insights into the structure-property relationships of Sb-Se glasses.

中文翻译：

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Sb-Se 玻璃结构弛豫现象的全面探索

使用差示扫描量热法、粘度测量和拉曼光谱对 Sb-Se 硫属化物玻璃（Sb 含量高达 6 at%）的结构弛豫行为进行了全面研究。采用三种不同类型的量热实验来估计和改进涉及非线性和非指数性的松弛模型的参数。玻璃化转变范围内的粘度测量证实了结构松弛和粘性流的活化能的相似成分依赖性。拉曼光谱提供了对与弛豫相关的结构变化的见解，突出了 SbSe _3/2 金字塔的形成及其对玻璃基体内交联的影响。这些发现阐明了成分、热历史和弛豫行为之间的相互作用，为 Sb-Se 玻璃的结构-性能关系提供了预测性见解。