Spectroscopic and crystal field studies of (NH_4)_2BeF_4:Co~(2+)

M.G. Brik; I.V. Kityk

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Spectroscopic and crystal field studies of (NH_4)_2BeF_4:Co~(2+)

机译：（NH_4）_2BeF_4：Co〜（2+）的光谱和晶体场研究

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Detailed studies of the optical spectra of new synthesized (NH_4)_2BeF_4: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 Co~(2+) 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.

机译：详细介绍了新合成的（NH_4）_2BeF_4：Co〜（2+）晶体的光谱。首先使用晶体场交换电荷模型（CF）对吸收光谱进行了一致的理论模拟。结果，我们获得了晶体场参数（CFP）和Co〜（2+）能级的值。这些结果用于在实验光谱中高达25000 cm〜（-1）的吸收带分配。计算得出的能级与观察到的能级之间的良好一致性支持了所获得的CFP值和Racah参数的可靠性。本文中使用的方法可以很容易地应用于掺杂过渡金属离子的新型合成非氧化物材料的光谱特征的预测和分析。

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来源
《Solid State Communications》 |2007年第7期|326-330|共5页
作者
M.G. Brik; I.V. Kityk;
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作者单位

Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo-ku, Kyoto, 606-8103, Japan;

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正文语种 eng
中图分类固体物理学;
关键词
A. Crystal and ligand fields; A. Transition metal compounds;

机译：A.晶体和配体场;A.过渡金属化合物;

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Spectroscopic and crystal field studies of (NH_4)_2BeF_4:Co~(2+)

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