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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effective segregation coefficient of Er3+ ions in ErF3-doped CaF2 crystals
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Effective segregation coefficient of Er3+ ions in ErF3-doped CaF2 crystals

机译:ErF3掺杂的CaF2晶体中Er3 +离子的有效偏析系数

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摘要

ErF3-doped CaF2 crystals were grown using the vertical Bridgman method. The optical absorption spectra reveal the characteristic peaks of the Er3+ ions. The dopant distribution along two crystals has been investigated using the optical absorption method. The effective segregation coefficient of the Er3+ ions has been calculated using the classical Scheil relationship between the impurity concentration and the crystal growth conditions. The effective segregation coefficient of the Er3+ ions in the CaF2 host depends slightly on the doping concentration, and varies between 0.99 and 1.03, for 0.8 mol% ErF3 and 2 mol% ErF3-doped CaF2 crystals, respectively.
机译:使用垂直Bridgman方法生长掺ErF3的CaF2晶体。吸收光谱揭示了Er3 +离子的特征峰。已经使用光吸收方法研究了沿两个晶体的掺杂剂分布。 Er3 +离子的有效偏析系数已使用杂质浓度与晶体生长条件之间的经典Scheil关系进行了计算。 CaF2主体中Er3 +离子的有效偏析系数略微取决于掺杂浓度,对于0.8摩尔%的ErF3和2摩尔%的ErF3掺杂的CaF2晶体,其有效偏析系数在0.99和1.03之间变化。

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