Dynamic Properties of Inorganic Glasses

9225072 Jain这个拟议的计划作为一个更新计划继续进行，它研究玻璃中的离子动力学，反映在电导率S的频率依赖性、核自旋弛豫以及两者之间的关联中。NSR率和S作为频率和温度的函数被测量。电荷离域(键合)及其对离子运动的影响有待系统地研究。这个拟议的项目旨在调查和了解玻璃中的离子运动。它试图回答这样的问题：在中等低温下，电导率的起源是什么？移动离子和离子电荷补偿中心或整个网络之间的化学键的确切性质是什么？玻璃作为光通信世界的主要组成部分，其重要性与日俱增。对这一类的基本了解可以产生有助于为新应用设计新眼镜的信息。****

9225072 Jain This proposed program continues as a renewal program, which investigates ion dynamics in glasses as reflected in the frequency dependence of electrical conductivity s, the nuclear spin relaxation (NSR), and in the correlation between the two. NSR rate and s are to be measured as a function of frequency and temperature. Charge delocalization (bonding) and its effect on ion movement are to be characterized systematically. %%%% This proposed program aims to investigate and to understand the ion movement in glasses. It seeks to answer questions such as, what is the origin of electrical conductivity at moderately low temperature?, and what is exact nature of chemical bond between a mobile ion and ion charge compensation center or network at large? Glass is assuming ever-increasing importance as a major component of the optical communication world. Fundamental understanding of this kind can produce information which will aid out design of new glasses for new applications. ****