A light induced configurational change of F-A centres in Li doped KCl-KBr crystals

被引：0

作者：

Ketolainen, P ^{[1
]}

Silfsten, P ^{[1
]}

机构：

[1] LAPEENRANTA UNIV TECHNOL,DEPT INFORMAT TECHNOL,SF-53851 LAPPEENRANTA,FINLAND

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1995年 / 134卷 / 1-4期

关键词：

alkali halides; mixed crystals; colour centres; F-A centres;

D O I：

10.1080/10420159508227257

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Spectroscopic properties of F-A centres in Li doped KCl-KBr mixed crystals were studied. At low temperature light induced spectral shifts, for the F-A1 band towards lower energy and for the F-A2 band towards higher energy, were observed. The shifts are proposed to be due to a configurational change where the electron occupied vacancy finds a new location in relation to the neighbouring chlorine and bromine ions. The recovery to the original configuration, obtained in the F --> F-A conversion, is a temperature activated process.

引用

页码：401 / 404

页数：4

共 24 条

[21] RADIATION-INDUCED Z2-]F CONVERSION IN ELECTROLYTICALLY COLORED ALKALINE-EARTH DOPED KCL CRYSTALS
DAMM, JZ
NIERZEWS.KD
BULLETIN DE L ACADEMIE POLONAISE DES SCIENCES-SERIE DES SCIENCES CHIMIQUES, 1974, 22 (04): : 321 - 324
[22] TUNABLE CW LASER OPERATION IN THE 1.45-2.16-MUM RANGE BASED ON F-2(+)-LIKE CENTERS IN O-2(-) DOPED NACL, KCL, AND KBR CRYSTALS
WANDT, D
GELLERMANN, W
LUTY, F
WELLING, H
JOURNAL OF APPLIED PHYSICS, 1987, 61 (03) : 864 - 869
[23] KINETICS OF RADIATION-INDUCED Z2-]F CONVERSION IN ELECTROLYTICALLY COLORED SR2+ DOPED KCL CRYSTALS
DAMM, JZ
NIERZEWSKI, KD
CRYSTAL LATTICE DEFECTS, 1975, 6 (1-2): : 121 - 124
[24] LIGHT-INDUCED REFRACTIVE-INDEX CHANGE IN SOME F COLORED ALKALI-HALIDE CRYSTALS
PEIPONEN, KE
VAITTINEN, A
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1982, 15 (13): : L415 - L418

← 1 2 3 →