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Report for the Atomic Resolution Reconstruction of a Au nanorod.
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Report for the Atomic Resolution Reconstruction of a Au nanorod
In this experiment we wanted to acquire high resolution HAADF-STEM images of a Au nanorod along different zone axes, combined with focal series acquisition at each zone axis. In order to achieve that, we used an aberration corrected FEI Titan 60-300 electron microscope operated at 200kV. The convergence angle was set to 24 mrad as it was requested and all images and focal series were acquired with 2048x2048 size in order to achieve the minimum requested distance of 20 pixels between individual neighbor columns. For the acquisition a Fischione model 2040 dual-tilt axis tomography holder was used. We were able to acquire images and focal series along three different zone axes from one single nanorod. The detector was also calibrated as requested before the experiment. The camera length was set to 115 mm.
0o -45o 45o Figure 1: High resolution HAADF-STEM images along two [110] and one [100] zone axes, form the same nanorod.
Figure 2: Volume rendering of the reconstructed volume along different viewing directions.
Figure 3: Orthoslices through the reconstructed volume, revealing the facets of the nanorod, which are mainly {100} and {110}.
The files will be send in zip form and this folder will contain 13 files, all of them in dm3 format. The high resolution images named -45, 0 and 45, an image of the detector, the CBED for all projections and also the CBED with the shadow of the detector in case it may be useful and the focal series for the three zone axes.