Spectroscopic and crystal field studies of (NH4)2BeF4:Co2+

被引：16

作者：

Brik, M. G.

Kityk, I. V. ^{[1
]}

机构：

[1] J Dlugosz Univ Czestochowa, Inst Phys, Czestochowa, Poland

[2] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

[3] Kyoto Univ, Fukui Inst Fundamental Chem, Sakyo Ku, Kyoto 6068103, Japan

来源：

SOLID STATE COMMUNICATIONS | 2007年 / 143卷 / 6-7期

关键词：

crystal and ligand fields; transition metal compounds;

D O I：

10.1016/j.ssc.2007.05.042

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Detailed studies of the optical spectra of new synthesized (NH4)(2)BeF4:CO(2+)crystals are presented. First consistent theoretical simulations of the absorption spectra were performed using exchange charge model of crystal field (CF). As a result, we obtained the values of crystal field parameters (CFPs) and Co2+ energy levels; these results were used for absorption bands assignments up to 25 000 cm(-1) in the experimental spectrum. Good agreement between calculated and observed energy levels supports reliability of the obtained CFPs values and Racah parameters. The method used in the present paper may be readily applied for the prediction and analysis of the spectroscopic features for new synthesized nonoxide materials doped with transition metal ions. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：326 / 330

页数：5

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