4 results match your criteria: "Germany and National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)[Affiliation]"
Nanoscale
July 2021
University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
Correction for 'Exploring the 3D structure and defects of a self-assembled gold mesocrystal by coherent X-ray diffraction imaging' by Jerome Carnis et al., Nanoscale, 2021, DOI: 10.1039/D1NR01806J.
View Article and Find Full Text PDFNanoscale
June 2021
University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
Mesocrystals are nanostructured materials consisting of individual nanocrystals having a preferred crystallographic orientation. On mesoscopic length scales, the properties of mesocrystals are strongly affected by structural heterogeneity. Here, we report the detailed structural characterization of a faceted mesocrystal grain self-assembled from 60 nm sized gold nanocubes.
View Article and Find Full Text PDFSoft Matter
September 2018
Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, Hamburg D-22607, Germany and National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye ch. 31, Moscow 115409, Russia.
The structural rearrangement of polystyrene colloidal crystals under dry sintering conditions has been revealed by in situ grazing incidence X-ray scattering. The measured diffraction patterns were analysed using distorted wave Born approximation (DWBA) theory and the structural parameters of the as-grown colloidal crystals of three different particle sizes were determined for the in-plane and out-of-plane directions in a film. By analysing the temperature evolution of the diffraction peak positions, integrated intensities, and widths, the detailed scenario of the structural rearrangement of crystalline domains at the nanoscale has been revealed, including thermal expansion, particle shape transformation and crystal amorphisation.
View Article and Find Full Text PDFSoft Matter
May 2017
Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-22607 Hamburg, Germany. and National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse 31, 115409 Moscow, Russia.
We report on the X-ray studies of freely suspended hexatic films of three different liquid crystal compounds. By applying angular X-ray cross-correlation analysis (XCCA) to the measured diffraction patterns the parameters of the bond-orientational (BO) order in the hexatic phase were directly determined. The temperature evolution of the BO order parameters was analyzed on the basis of the multicritical scaling theory (MCST).
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