Diffusion Driven Concerted Motion of Surface Atoms: Ge on Ge(001)

Henricus J.W. Zandvliet, T.M. Galea, E. Zoethout, Bene Poelsema

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Abstract

The diffusion of Ge dimers on the Ge(001) surface has been studied with scanning tunneling microscopy. We have identified three different diffusion pathways for the dimers: diffusion of on-top dimers over the substrate rows, diffusion across the substrate rows, and diffusion of dimers in the trough. We report on a heretofore unknown phenomenon, namely, diffusion driven concerted motion of substrate atoms. This concerted motion is a direct consequence of the rearrangement of substrate atoms in the proximity of the trough dimer adsorption site.
Original languageEnglish
Pages (from-to)1523-1526
Number of pages4
JournalPhysical review letters
Volume84
Issue number7
DOIs
Publication statusPublished - 2000

Keywords

  • METIS-128680
  • IR-61231

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