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Array Tomography Workflow for the Targeted Acquisition of Volume Information using Scanning Electron Microscopy

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An emission-potential multislice approximation to simulate thermal diffuse scattering in high-resolution transmission

Andreas Rosenauer¹, Marco Schowalter, John T Titantah

¹Institut für Festkörperphysik, Universität Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany. rosenauer@ifp.uni-bremen.de

Ultramicroscopy

|June 3, 2008

Summary

This study introduces a faster method to simulate thermal diffuse scattering in transmission electron microscopy. The new emission-potential approach closely matches existing methods for analyzing materials like gold and indium antimonide.

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Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography

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Array Tomography Workflow for the Targeted Acquisition of Volume Information using Scanning Electron Microscopy

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Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography

Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography

Published on: March 12, 2017

Area of Science:

Materials Science
Solid-State Physics
Electron Microscopy

Background:

Thermal diffuse scattering (TDS) significantly impacts high-resolution transmission electron microscopy (HRTEM) images.
TDS intensity adds background noise and peaks at atomic column positions, complicating image interpretation.

Purpose of the Study:

To develop a computationally efficient approximation for simulating TDS intensity in HRTEM.
To validate the proposed method against established techniques for materials like gold (Au) and indium antimonide (InSb).

Main Methods:

An emission-potential multislice algorithm was developed for TDS simulation under plane-wave illumination.
The method was applied to compute intensity patterns for Au and InSb at various crystal orientations.
Results were compared with the frozen lattice and frozen phonon approximations.

Main Results:

The emission-potential method provides a computationally less intensive alternative to existing approximations.
Simulated intensity patterns showed close agreement with results from the frozen lattice and frozen phonon methods.
The frozen phonon method utilized a detailed phonon model derived from density functional theory calculations.

Conclusions:

The proposed emission-potential multislice algorithm is a viable and efficient approach for simulating TDS in HRTEM.
This method offers a practical tool for analyzing electron microscopy data with reduced computational cost.
Accurate simulation of TDS is crucial for interpreting atomic structures in materials science.