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Updated: Jun 18, 2026

Energy Dispersive X-ray Tomography for 3D Elemental Mapping of Individual Nanoparticles
Published on: July 5, 2016
Surface X-ray speckles: coherent surface diffraction from Au(001)
M S Pierce1, K C Chang, D Hennessy
1Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Abstract:
We present coherent speckled x-ray diffraction patterns obtained from a monolayer of surface atoms. We measured both the specular anti-Bragg reflection and the off-specular hexagonal reconstruction peak for the Au(001) surface reconstruction. We observed fluctuations of the speckle patterns even when the integrated intensity appears static. By autocorrelating the speckle patterns, we were able to identify two qualitatively different surface dynamic behaviors of the hex reconstruction depending on the sample temperature.
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