Spectroscopy of divalent rare earth ions in fluoride crystals

被引：10
|
作者：
Shendrik, R. [1 ,2 ]
Myasnikova, A. S. [1 ]
Radzhabov, E. A. [1 ,2 ]
Nepomnyashchikh, A. I. [1 ,2 ]
机构：
[1] Vinogradov Inst Geochem SB RAS IGC SB RAS, Irkutsk 664033, Russia
[2] Irkutsk State Univ, Fac Phys, Irkutsk 664003, Russia
来源：
JOURNAL OF LUMINESCENCE | 2016年 / 169卷
基金：
俄罗斯基础研究基金会;
关键词：
rare earth; spectroscopy; fluorides; divalent; bivalent; ab initio; optical absorption; cerium; praseodymium; LUMINESCENCE; SPECTRA; CALCIUM; CAF2; SRF2; SERIES; STATES; RAMAN; CE2+; EU2+;
D O I：
10.1016/j.jlumin.2015.06.055
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have studied the absorption spectra of x-ray irradiation-induced Ce2+ and Pr2+ ions in crystals of alkaline-earth fluorides. We have calculated absorption spectra of divalent praseodymium ions in SrF2 crystals doped with Pr2+ for the first time. The calculated spectra agree rather well with the experimental data. In crystals containing induced Ce2+ ions we have found strong electron-phonon coupling. In BaF2, we do not observe bands corresponding to divalent Ce or Pr ions. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：635 / 640
页数：6
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