Dynamics and Structure of New Chalcognenide Glasses

这是一种研究新型硫系玻璃的中程有序与物理性质之间关系的建议。中子散射、核四极共振光谱、分子动力学模拟和拉曼光谱将被用来映射这些新材料的中间和短程有序的物理性质。这项研究还将包括对硫硼酸盐玻璃中离子电导率和核磁共振自旋晶格弛豫时间的频率依赖性的研究。这部分研究的目的是解决电导和弛豫激活能之间的差异。可以预见，通过这项研究获得的信息将使工程设计新的高科技玻璃和非晶态材料的性能成为可能。

This is a proposal to study the relationship between the intermediate range order and physical properties of new chalcogenide glasses. Neutron scattering, nuclear quadrapole resonance spectroscopy, molecular dynamics simulation, and Raman spectroscopy will be used to map the intermediate as well as the short range order to the physical properties of these novel materials. The research will also include the study of the frequency dependence of ionic conductivities and NMR spin-lattice relaxation times in thioborate glasses. This portion of the study is aimed to resolve the discrepancy between the activation energies for conductivity and relaxation. It is envisioned that the information gained through this research will enable the engineering of properties of new high technology glasses and amorphous materials.