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Inversion of dynamical electron scattering to obtain the crystal potential using data from two thicknesses
1School of Physics, University of Melbourne, Victoria 3010, Australia. lja@physics.unimelb.edu.au
Summary
This study presents a method to determine a crystal's projected potential by analyzing electron scattering data. Two crystal thicknesses are needed to accurately invert multiple electron scattering for a fixed beam orientation.
Area of Science:
- Solid-state physics
- Materials science
- Electron crystallography
Background:
- Electron scattering is a fundamental tool for probing material structures.
- Understanding multiple scattering is crucial for accurate crystallographic analysis.
- Extracting projected potentials from experimental data is challenging.
Purpose of the Study:
- To develop a method for inverting multiple electron scattering.
- To determine the projected potential of a crystalline slab.
- To enable more accurate structural analysis using electron microscopy.
Main Methods:
- Utilizing electron scattering data from crystalline slabs.
- Requiring scattering data for two distinct crystal thicknesses.
- Applying an inversion method to multiple scattering data.
Main Results:
- Successfully demonstrated a method to obtain the projected potential.
- The technique relies on analyzing electron scattering patterns.
- Two crystal thicknesses are sufficient for the inversion.
Conclusions:
- The developed method allows for the retrieval of projected potentials.
- This technique enhances the capabilities of electron crystallography.
- It provides a pathway for more precise material characterization.
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