エネルギーフィルタリング電子回折法によるCa2Y2Si2O9単結晶の散漫散乱の観察

概要

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Efficiency of the electron diffraction method with a newly developed omega-type magnet has been examined for the analyses of weak diffuse scattering by observing the peculiar diffuse scattering in a Ca_2Y_2Al_2O_9 single crystal. The strong background in electron diffraction patterns, which prevents us to carry out the accurate analyses of the diffuse scattering, was drastically reduced by removing the inelastically scattered electrons with the omega-type magnet, and precise observations of the diffuse scattering was successfully performed. Characteristic features of the crystal structure were also discussed from the results of the diffuse scattering clearly observed.electron diffractionenergy-filteringdiffuse scatteringelectron microscopyceramicscrystal structure
東北大学の論文