Atomic seesaws

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
Faculty:	Science and Technology (TNW)
Research Group:	Catalytic Processes and Materials (CPM) Physics of Interfaces and Nanomaterials (PIN)
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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