THE HOPPING MOTION OF THE OFF-CENTER SELF-TRAPPED EXCITONS IN ALKALI-HALIDE CRYSTALS

被引：8

作者：

CHEN, LF

SONG, KS

LEUNG, CH

机构：

[1] UNIV NEW BRUNSWICK,DIV SCI,ST JOHN E2L 4L5,NB,CANADA

[2] UNIV OTTAWA,DEPT PHYS,OTTAWA K1N 6N5,ONTARIO,CANADA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1990年 / 46卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(90)90700-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A brief review of the off-center self-trapped exciton in alkali halide crystals is presented, with particular emphasis on the two groups of alkali halides: group I. characterized by a small off-center shift of the Vk core. and group II. by a larger shift. Activation energies for the hopping motion of self-trapped excitons in NaCl, NaBr. KCl and KBr are calculated and the results are in satisfactory agreement with experiment. It is suggested that alkali halides of group I generally have smaller activation energies than those of group II. © 1990.

引用

页码：216 / 219

页数：4

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