Quantitative structure determination from experimental four-dimensional scanning transmission electron microscopy via the scattering matrix
Materials Science
2025-06-27 v1 Instrumentation and Detectors
Abstract
Considerable inroads have recently been made on algorithms to determine the sample potential from four-dimensional scanning transmission electron microscopy data from thick samples where multiple scattering cannot be neglected. This paper further develops the scattering matrix approach to such structure determination. Through simulation, we demonstrate how this approach can be modified to better handle partial spatial coherence, unknown probe defocus, and information from the dark field region. By combining these developments we reconstruct the electrostatic potential of a monolithic SrTiO crystal showing good quantitative agreement with the expected structure.
Cite
@article{arxiv.2506.21004,
title = {Quantitative structure determination from experimental four-dimensional scanning transmission electron microscopy via the scattering matrix},
author = {Emmanuel W. C. Terzoudis-Lumsden and Alireza Sadri and Matthew Weyland and Laure Bourgeois and Stephanie M. Ribet and Georgios Varnavides and Colin Ophus and Timothy C. Petersen and Scott D. Findlay},
journal= {arXiv preprint arXiv:2506.21004},
year = {2025}
}
Comments
24 pages, 9 figures