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Publications in Scientific Journals:

S. Löffler, S. Sack, T. Schachinger:
"Elastic propagation of fast electron vortices through amorphous materials";
Acta Crystallographica Section A, A75 (2019), 902 - 910.



English abstract:
This work studies the elastic scattering behavior of electron vortices when
propagating through amorphous samples. A formulation of the multislice
approach in cylindrical coordinates is used to theoretically investigate the
redistribution of intensity between different angular momentum components
due to scattering. To corroborate and elaborate on our theoretical results,
extensive numerical simulations are performed on three model systems (Si3N4,
Fe0.8B0.2, Pt) for a wide variety of experimental parameters to quantify the
purity of the vortices, the net angular momentum transfer, and the variability of
the results with respect to the random relative position between the electron
beam and the scattering atoms. These results will help scientists to further
improve the creation of electron vortices and enhance applications involving
them.

Keywords:
electron vortex beams; amorphous materials; elastic scattering


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1107/S2053273319012889


Created from the Publication Database of the Vienna University of Technology.