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Publication Detail
Three-dimensional Imaging of Microstructure in Gold Nanocrystals
  • Publication Type:
    Journal article
  • Publication Sub Type:
  • Authors:
    Williams GJ, Pfeifer MA, Vartanyants IA, Robinson IK
  • Publication date:
  • Pagination:
    175501, ?
  • Journal:
    physical review letters
  • Volume:
  • Print ISSN:
  • Notes:
    First use of three-dimensional phasing method for coherent diffraction. UCL author Robinson provided project leadership, the idea for the experiment and built the facilities used.
X-ray diffraction using a coherent beam involves the mutual interference among all the extremities of small crystals. The continuous diffraction pattern so produced can be phased because it can be oversampled. We have thus obtained three-dimensional images of the interiors of Au nanocrystals that show 50 nm wide bands of contrast with f111g orientation that probably arise from internal twinning by dynamic recrystallization during their formation at high temperature.
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