PHYSICAL BASIS OF THE MOLLWO-IVEY RELATION BETWEEN LATTICE-CONSTANT AND OPTICAL-ABSORPTION OF DEFECTS IN IONIC-CRYSTALS

被引：19

作者：

MALGHANI, MS

SMITH, DY

机构：

[1] Department of Physics, University of Vermont, Burlington

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.69.184

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive the Mollwo-Ivey power-law relation between optical absorption energy and lattice constant for defects in ionic solids from the spatial scaling of the defect's electronic charge distribution. Our starting point is the Vinti sum rule, which relates the rms size of the electronic ground state to the absorption spectrum. We treat F centers and impurity ions in alkali halides in detail, but the general theory should be widely applicable.

引用

页码：184 / 187

页数：4

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