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

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Zandvliet, H.J.W. and Galea, T.M. and Zoethout, E. and Poelsema, Bene (2000) Diffusion Driven Concerted Motion of Surface Atoms: Ge on Ge(001). Physical Review Letters, 84 (7). pp. 1523-1526. ISSN 0031-9007

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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.
Item Type:Article
Copyright:© 2000 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/61231
Official URL:http://dx.doi.org/10.1103/PhysRevLett.84.1523
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