PRESSURE-DEPENDENCE OF EFFECTIVE IONIC CHARGES IN ALKALI-HALIDES

被引：7
|
作者：
KUCHARCZYK, W
机构：
[1] Institute of Physics, Technical University, 93-005 Lódź
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1991年 / 52卷 / 02期
关键词：
SZIGETI EFFECTIVE CHARGE; ALKALI HALIDES; PHOTOELASTIC EFFECT;
D O I：
10.1016/0022-3697(91)90095-H
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An estimation of the pressure dependence of the Szigeti effective ionic charge in alkali halides is presented. In the method the empirical connection between electronic and lattice ionicity proposed by Lawaetz is taken into account. The connection links e(s)* with the ratio of Phillips' electronegativity difference and the plasma energy of a free-valence-electron gas. Changes in the dielectric electronegativity parameter are related to the photoelastic effect.
引用
收藏
页码：435 / 436
页数：2
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