OPTICAL-PROPERTIES OF RADIATION DEFECT CENTERS INVOLVING SINGLE AND PAIRED MN2+ CENTERS IN CAF2-MN

被引：14

作者：

CHAKRABARTI, K ^{[1
]}

SHARMA, J ^{[1
]}

MATHUR, VK ^{[1
]}

BARKYOUMB, JH ^{[1
]}

机构：

[1] USN,CTR SURFACE WARFARE,SILVER SPRING,MD 20903

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.51.16541

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optical evidence of paired Mn2+ centers has been observed in CaF2:Mn by time-resolved laser spectroscopy. The paired Mn2+ center is associated with a peak shift of the Mn2+ emisssion towards longer wavelength and a faster component of decay of 500 μs along with a slow decay of 48 ms due to a single Mn2+ ion. It appear that this center forms a Mn2+-F-center-Mn2+ complex when the material is γ irradiated. This complex is associated with a thermoluminescence peak near 360°C and an optical-absorption band near 300 nm. A conversion from a Mn2+-F-center-Mn2+ complex to an F-center-Mn2+ complex is observed in phototransferred thermoluminescence and in photobleached optical-absorption spectra. © 1995 The American Physical Society.

引用

页码：16541 / 16548

页数：8

共 21 条

[1] MANGANESE CENTERS IN LOW-TEMPERATURE X-IRRADIATED CAF2 - MN [J].