Influence of dimer buckling on dimer diffusion: A scanning tunneling microscopy study

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Huijben, Jeroen and Houselt van, Arie and Zandvliet, Harold J.W. and Poelsema, Bene (2006) Influence of dimer buckling on dimer diffusion: A scanning tunneling microscopy study. Physical Review B: Condensed matter and materials physics, 73 (073311). ISSN 1098-0121

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Abstract:The diffusion of Ge dimers along the substrate dimer rows of Ge(001) has been investigated with scanning tunneling microscopy. The jump frequency of on-top Ge dimers along symmetric dimer rows at room temperature is found to be eight times higher than the diffusion along asymmetric dimer rows (0.36 s–1 versus 0.044 s–1). We ascribe this difference to limitations associated with the rocking motion that a dimer has to perform while diffusing along asymmetric dimer rows.
Item Type:Article
Copyright:© 2006 American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/59096
Official URL:http://dx.doi.org/10.1103/PhysRevB.73.073311
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