A TARGET DIFFUSION-THEORY FOR NUCLEAR-SPIN RELAXATION IN IONICALLY-CONDUCTING GLASSES

被引：31

作者：

ELLIOTT, SR

OWENS, AP

机构：

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1991年 / 95卷 / 09期

关键词：

DIFFUSION; GLASSES; IONIC CONDUCTIVITY; SPECTROSCOPY; NUCLEAR MAGNETIC RESONANCE;

D O I：

10.1002/bbpc.19910950907

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A theoretical mechanism is presented for nuclear spin relaxation in ionically-conducting glasses (or disordered crystals) caused by ionic motion. This is based on the diffusion-controlled relaxation model previously used to account for electrical relaxation in such materials: relaxation is assumed to occur at particular (interstitalcy) sites, triggered by the arrival of other diffusing ions. The experimental dependence of the spin-lattice relaxation rate on temperature and ionic concentration can be understood on the basis of this model.

引用

收藏

页码：987 / 992

页数：6

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