NUCLEAR-SPIN RELAXATION IN GLASSY IONIC CONDUCTORS

被引：8

作者：

ELLIOTT, SR ^{[1
]}

机构：

[1] UNIV MONTPELLIER 2, SCI MAT VITREUX LAB, F-34095 MONTPELLIER 5, FRANCE

来源：

JOURNAL DE PHYSIQUE IV | 1992年 / 2卷 / C2期

关键词：

D O I：

10.1051/jp4:1992206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nuclear spin relaxation behaviour in disordered ionically conducting materials is ascribed to a mechanism based on diffusion-controlled relaxation. In this target-diffusion model, relaxation is assumed to occur at interstitialcy sites, triggered by the arrival of diffusing ions. The dependence of the spin-lattice relaxation rate on the temperature, Larmor frequency and ionic concentration can all be understood with this model. The results of a nuclear spin-lattice relaxation study of the mixed-alkali effect in glasses can, on this basis, be interpreted in terms of changes in ionic mobility.

引用

页码：51 / 59

页数：9

共 32 条

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