Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The S-state model: a work horse for HRTEM.

P Geuens1, D Van Dyck

  • 1Department of Physics, EMAT, University of Antwerp (RUCA), Groenenborgerlaan 171, 2020 Antwerp, Belgium.

Ultramicroscopy
|December 21, 2002
PubMed
Summary

The S-state model accurately determines projected structures from electron scattering data in materials science. This quantum mechanical approach validates the model for high-resolution transmission electron microscopy (HRTEM) studies.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Fast STEM image simulation in low-energy transmission electron microscopy by the accurate Chen-van-Dyck multislice method.

Micron (Oxford, England : 1993)·2024
Same author

Older adults' compliance with mobile ecological momentary assessments in behavioral nutrition and physical activity research: pooled results of four intensive longitudinal studies and recommendations for future research.

The international journal of behavioral nutrition and physical activity·2024
Same author

Dynamical diffraction of high-energy electrons investigated by focal series momentum-resolved scanning transmission electron microscopy at atomic resolution.

Ultramicroscopy·2021
Same author

Effectiveness of the mHealth intervention 'MyDayPlan' to increase physical activity: an aggregated single case approach.

The international journal of behavioral nutrition and physical activity·2021
Same author

Inequality in physical activity, global trends by income inequality and gender in adults.

The international journal of behavioral nutrition and physical activity·2020
Same author

Acceptability and feasibility of the mHealth intervention 'MyDayPlan' to increase physical activity in a general adult population.

BMC public health·2020

Area of Science:

  • Materials Science
  • Quantum Mechanics
  • Electron Microscopy

Background:

  • The S-state model simplifies electron scattering in crystalline materials.
  • It explains the link between electron exit waves and projected structures, even with strong scattering.
  • The model offers a parameterized, analytical form for computational efficiency.

Purpose of the Study:

  • To rigorously evaluate the validity of the S-state model using quantum mechanics.
  • To analyze the analytical parameterization of the 1S eigenfunction and eigenenergy.
  • To assess the model's applicability in High-Resolution Transmission Electron Microscopy (HRTEM).

Main Methods:

  • Quantum mechanical treatment of electron dynamical scattering.
  • Analytical parameterization of the 1S eigenfunction and eigenenergy.
  • Evaluation of model accuracy for various specimen thicknesses and atomic column spacings.

Main Results:

  • The S-state model is validated for most thicknesses used in HRTEM.
  • Accurate determination of atom column positions (within picometers) is achieved, even for closely spaced structures.
  • The model effectively "inverts" dynamical scattering to deduce projected structures.

Conclusions:

  • The S-state model provides a robust and accurate method for structural analysis in HRTEM.
  • Its quantum mechanical validation confirms its utility for precise atomic-scale imaging.
  • The model facilitates direct deduction of projected structures from experimental data.

Related Experiment Videos