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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Calculation of the Shape of the R Line of the Mn~(4+) Ion in Gadolinium-Gallium Garnet
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Calculation of the Shape of the R Line of the Mn~(4+) Ion in Gadolinium-Gallium Garnet

机译：Gar镓石榴石中Mn〜（4+）离子R线形状的计算

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摘要

A model is proposed for describing the luminescence and excitation spectra of paramagnetic ions with the 3d~3 electron configuration in gadolinium-containing crystals that is based on the approximation of strong magnetic interaction between paramagnetic ions of transition metals and Gd~(3+) ions. This model provides a satisfactory description for the abnormally large width of the R line of the Mn~(4+) ion in gadolinium-gallium garnet. It is shown that the large Stokes shift in the luminescence spectrum of the Mn~(4+) ion in gadolinium-gallium garnet relative to the excitation spectra is associated with the splitting of energy levels as a result of magnetic interaction. An algorithm is developed for calculating the spectral shape of the R line of Mn~(4+) in gadolinium-gallium garnet. The possibility of determining the degree of sublevel broadening associated with the presence of inhomogeneities in the crystal and with thermal vibrations from an analysis of the width of the R line is demonstrated as well as the exchange interaction constant.
机译：提出了一种基于过渡金属的顺磁性离子与Gd〜（3+）离子之间强磁相互作用的近似模型，用于描述含d晶体中具有3d〜3电子构型的顺磁性离子的发光光谱和激发光谱。 。该模型为g镓镓石榴石中Mn〜（4+）离子R线异常大的宽度提供了令人满意的描述。结果表明，g-镓石榴石中Mn〜（4+）离子的发光光谱相对于激发光谱的大斯托克斯位移与磁能级的分裂有关。提出了一种计算calculating镓石榴石中Mn〜（4+）R线光谱形状的算法。证明了通过分析R线的宽度来确定与晶体中不均匀性的存在以及与热振动有关的亚基增宽程度的可能性以及交换相互作用常数。

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