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本文研究了14种LnP5O14(Ln=La→Lu)晶体的折射率(Ng,Nm,Np),密度(D),克分子体积(VM),克分子折射度(RM),同时还研究了波长、温度对晶体光学性质的影响,获得了一些规律性的结果。认为稀土化合物性质的变化规律不仅与稀土离子的特性有关,而且与周围环境的改变有关。In this work, the refractive indices, density, molar volume and molar refractive degree of LnP5O14 crystals have been measured. The influence of wavelength and temperature on optical properties was also studied and some regular results were obtained. These results indicated that the properties of rare-earth compounds depend not only on the nature of rare-earth ion itself but also on the conditions of environment.
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