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We present a novel numerical solution to the exact Schrödinger equation for electron microscopy image simulations. This method addresses challenges posed by aberration correctors enabling high-resolution, low-energy imaging.

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Area of Science:

  • Physics
  • Materials Science
  • Electron Microscopy

Background:

  • Traditional electron microscopy simulations relied on high-energy approximations.
  • Aberration correctors have enabled high-resolution imaging at lower electron energies, necessitating new simulation approaches.

Purpose of the Study:

  • To introduce a numerical solution for the exact Schrödinger equation in electron microscopy.
  • To systematically investigate multislice algorithms, particularly real-space methods, for low-energy imaging.

Main Methods:

  • Numerical solution of the exact Schrödinger equation.
  • Systematic investigation of multislice algorithms, including real-space approaches.

Main Results:

  • The developed numerical solution accurately simulates electron microscopy images at low energies.
  • Analysis of advantages and limitations of various multislice algorithms was performed.

Conclusions:

  • The exact Schrödinger equation solution is crucial for accurate simulations with modern aberration-corrected electron microscopes.
  • Real-space multislice algorithms require careful consideration for optimal performance in low-energy imaging scenarios.