Visualization of steps and surface reconstructions in Helium Ion Microscopy with atomic precision.

@article{Hlawacek2016VisualizationOS,
  title={Visualization of steps and surface reconstructions in Helium Ion Microscopy with atomic precision.},
  author={Gregor Hlawacek and Maciej Jankowski and Herbert Wormeester and Raoul van Gastel and Harold J. W. Zandvliet and Bene Poelsema},
  journal={Ultramicroscopy},
  year={2016},
  volume={162},
  pages={17-24}
}
Helium Ion Microscopy is known for its surface sensitivity and high lateral resolution. Here, we present results of a Helium Ion Microscopy based investigation of a surface confined alloy of Ag on Pt(111). Based on a change of the work function of 25meV across the atomically flat terraces we can distinguish Pt rich from Pt poor areas and visualize the single atomic layer high steps between the terraces. Furthermore, dechanneling contrast has been utilized to measure the periodicity of the hcp… CONTINUE READING