NONEXPONENTIALITY AND THERMAL VARIATION OF NUCLEAR-RELAXATION IN GLASSES

被引：7

作者：

DEVREUX, F ^{[1
]}

MALIER, L ^{[1
]}

机构：

[1] CNRS,PALAISEAU,FRANCE

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.51.11344

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inhomogeneous relaxation of quadrupolar nuclei in glasses is explained by a model that takes into account the dependence on the distance of the coupling between nuclei and disorder modes. This leads to a stretched exponential magnetization recovery, R(t)=exp[-(t/t1)β], which modifies the temperature power-law variation of the apparent relaxation rate 1/t1∼Tα. An inverse relation between α and β is demonstrated in agreement with what is observed in a number of glasses. © 1995 The American Physical Society.

引用

页码：11344 / 11347

页数：4

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