THERMAL-EXPANSION OF ISOTOPICALLY SUBSTITUTED ALKALI HYDRIDES

被引：4

作者：

TYUTYUNNIK, VI

机构：

[1] Department of Physics, Omsk Polytechnical Institute

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1994年 / 181卷 / 02期

关键词：

D O I：

10.1002/pssb.2221810212

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of both temperature and isotope substitution on the distance between ions in alkali hydride crystals is investigated by means of the rigid-ion model with only nearest-neighbour interactions. It is shown that the thermal expansion may be described as a function of the Coulomb potential parameters and the cation-anion reduced mass. For the first time, the thermal expansion data are calculated for Na, K, Rb, and Cs hydrides and deuterides. The calculation results are in agreement with experimental values.

引用

页码：373 / 376

页数：4

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