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首页> 外文期刊>日本结晶学会志 >A Guide to Full Utilization of RIETAN, Three-Dimensional Visualization of Electron- and Nuclear-Density Distribution
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A Guide to Full Utilization of RIETAN, Three-Dimensional Visualization of Electron- and Nuclear-Density Distribution

机译:RIETAN充分利用指南,电子密度和核密度分布的三维可视化

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The combination of RIETAN-2000 and a new MEM analysis program PRIMA enables us to represent crystal structures with densities of electrons (X-ray diffraction< or coherent-scattering lengths (neutron diffraction) instead of structure parameters in Rietveld analysis. We have devised sophisticated methodology named MEM-based pattern fitting, where whole-pattern fitting and MEM analysis are alternately repeated to reduce the bias of a structural model in Rietveld analysis as much as possible. Applications of MPF to some compounds will be demonstrated. A 3D visualization program VENUS serves to display and manipulate electron and scattering-length densities, electrostatic potentials, wave functions, and so forth.
机译:RIETAN-2000和新的MEM分析程序PRIMA的组合使我们能够表示具有电子密度(X射线衍射<或相干散射长度(中子衍射))的晶体结构,而不是Rietveld分析中的结构参数。 3D可视化程序VENUS:一种基于MEM的模式拟合方法,在该方法中,交替进行整体模式拟合和MEM分析,以尽可能减少Rietveld分析中结构模型的偏差,并演示MPF在某些化合物上的应用。用于显示和操纵电子和散射长度密度,静电势,波函数等。

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