| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
In this study, we aimed to establish a model-free structure analysis by using transmission X-ray diffraction (TXD), in which one observes diffracted X-rays through a sample. We manufactured an instrument for thinning a crystal sample by wet-etching to prepare substrates for TXD experiments. We installed the sample manipulator with micro-meter precision into an diffractometer, which realize an experimental setup enough to execute TXD. A model-free structure analysis based on a holographic interpretation of rod-like scatterings originating from existence of surfaces on materials, is adopted here. For precise structure determination, we developed and utilized a structure refinement program using a nonlinear least square fit. We obtained images of surface atoms by the model-free analysis using data obtained at SPring-8, which are enough to verify a feasibility of the analysis method.
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