XPCS Analysis of Chalcogenide Glasses

Unravelling the connection between the macroscopic properties of glasses and their amorphous structure is probably one of the hardest as well as the most rewarding task to pursue, in condensed matter. The employment of chalcogenide glasses can foster these studies since they allow one to easily tune the microscopic structure via a change either of composition or temperature. We propose to perform an x-ray photon correlation study of these glasses to evaluate the beam-induced relaxations. We aim at unveiling the influence of the amorphous structure on the dynamic modifications induced by x-rays.

在凝聚态物理领域，厘清玻璃态材料的宏观性质与其非晶结构之间的关联，或许是最具挑战性同时也是最具学术价值的研究课题之一。硫系玻璃（chalcogenide glasses）的应用可有效推动此类研究，因为通过改变组分或调控温度，便能灵活调节其微观结构。本研究拟对这类硫系玻璃开展X射线光子关联实验，以探究射线束诱导的弛豫过程。我们旨在揭示非晶结构对X射线诱导的动态结构变化的影响。