Lattice Vibrations and Heat Transport in Dielectric Solids

他们建议研究关于声子的几个重要问题 在无定形和结晶固体中，主要通过热 电导率测量。 其中一个问题是， 在10 - 300 ℃温度范围内无定形固体中的热流 K，目标是理解声子的跃迁 这就是弹性能的随机游走。 他们 也将继续他们在无序晶体上的工作， 玻璃般的热性能，以测试几个模型 已经被提出来作为解释。 他们会用这些 试图识别其他无序晶体的模型 显示出类似玻璃的性质。 他们的最终目标是 将他们的知识应用于无定形固体， 他们的兴奋。 他们还将提议调查 声子散射在晶体表面，以了解和 确定重要的散射机制。 在这里，他们的目标是 使用声子作为表面的灵敏低能探针。

They propose to study several important questions about phonons in amorphous and crystalline solids, mainly through thermal conductivity measurements. One of these questions is that of the heat flow in amorphous solids in the temperature range 10 - 300 K, with the goal of understanding the transition of the phonon picture to that of a random walk of the elastic energy. They will also continue their work on disordered crystals displaying glass-like thermal properties, in order to test several models that have been advanced as explanations. They will use these models in an attempt at identifying other disordered crystals displaying glass-like properties. Their ultimate goal is to apply their knowledge to amorphous solids, and to understand their excitations. They will also propose an investigation of phonon scattering at crystal surfaces, in order to understand and identify important scattering mechanisms. Here, their goal is to use phonons as sensitive low energy probes for surfaces.