Atomic seesaws

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Houselt van, Arie and Poelsema, Bene and Zandvliet, Harold J.W. (2010) Atomic seesaws. Journal of Physics: Condensed matter, 22 (26). p. 264004. ISSN 0953-8984

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Abstract:The dynamics of two types of atomic seesaws are studied by open feedback loop scanning tunneling microscopy. The first type of atomic seesaw is a regular Ge dimer of the dimer reconstructed Ge(001) surface and the second type of atomic seesaw is a dimer located on the ridges of Au induced nanowires on a Ge(001) surface. On the bare Ge(001) surface the flip-flop motion of the dimers is induced by phasons, which perform a one-dimensional random walk along the substrate dimer rows. The phasons on the Au induced nanowires ridges are pinned and therefore only a limited number of dimers exhibit flip-flop behavior for the Au/Ge(001) system.
Item Type:Article
Copyright:© IOP Publishing 2010
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/72804
Official URL:http://dx.doi.org/10.1088/0953-8984/22/26/264004
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