Crystal field study of Chromium(III) ions doped antimony phosphate glass: Fano’s antiresonnance and Neuhauser models

被引：0
作者：
H Souissi
O Taktak
S Kammoun
机构：
[1] Université de Sfax,Laboratoire de Physique Appliquée, Groupe de Physique des Matériaux Luminescents, Faculté des Sciences de Sfax
来源：
Indian Journal of Physics | 2018年 / 92卷
关键词：
Crystal field; Transition-metal; Phosphate glass; Interference dip; Fano’s antiresonances and Neuhauser models; 71.23.Cq;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The absorption spectrum of antimony phosphate glass doped with Cr3+ is characterized by the presence of features on the 4T2g(4F) absorption band. These features result from the interaction of the 2Eg(2G) and 2T1g(2G) sharp levels with the vibrationally broadened 4T2g(4F) quasi-continuum via spin-orbit coupling called interference dips. We have analyzed this phenomenon through two models: Fano’s antiresonance and Neuhauser models. This analysis permits us to determine the electronic structure of the chromium ion Cr3+ based on the crystal field theory. As a result, Racah and crystal-field parameters have been reliably obtained. A good agreement between the theoretical and the experimental energy levels are obtained.
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页码：1153 / 1160
页数：7
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