Oscillations around CO atoms seen in STM images

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SUMMARY

The discussion centers on the oscillations in electron density around CO atoms as observed in Scanning Tunneling Microscopy (STM) images. Participants explore the potential causes of these oscillations, specifically questioning whether they arise from the potential introduced by CO atoms. The conversation also delves into modeling techniques to predict oscillation patterns, debating the appropriate potential to use, such as the 1/r or Yukawa potential, for accurate representation of surface electrons in this context.

PREREQUISITES
  • Understanding of Scanning Tunneling Microscopy (STM) principles
  • Familiarity with electron density concepts
  • Knowledge of potential models, specifically 1/r and Yukawa potentials
  • Basic skills in computational modeling of surface electrons
NEXT STEPS
  • Research modeling techniques for electron density oscillations in STM
  • Learn about the application of Yukawa potential in surface electron studies
  • Explore advanced Scanning Tunneling Microscopy techniques and their implications
  • Investigate the effects of CO atoms on surface electron behavior in various materials
USEFUL FOR

Researchers in nanotechnology, physicists studying surface phenomena, and anyone interested in the applications of Scanning Tunneling Microscopy in material science.

MisterX
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This effect can be seen in the short film "A Boy and His Atom". I had a couple ideas about what this could be but I am curious if someone knows better.
 
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I am curious why this happens. Is it due to the presence of a potential introduced by the CO atom? How can we model this effect to predict the oscillation pattern? How can we model surface electrons, and what is the proper potential to use (1/r or Yukawa? ) for a CO atom?
 

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