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Controlled damaging and repair of self-organized nanostructures by atom manipulation at room temperature

O Gurlu1,3, A van Houselt1,4, W H A Thijssen2, J M van Ruitenbeek2, B Poelsema1 and H J W Zandvliet1

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The possibility of controlled local demolition and repair of the recently discovered self-organized Pt nanowires on Ge(001) surfaces has been explored. These nanowires are composed of Pt dimers, which are found to be rather weakly bound to the underlying substrate. Using this property, we demonstrate the possibility of carrying the constituting dimers of the Pt nanowires from point to point with atomic precision at room temperature. Pt dimers can be picked-up in two configurations: (i) a horizontal configuration at the tip apex, resulting in double tip images and (ii) a configuration where the Pt dimer is attached to the side of the tip apex, resulting in well-defined atomically resolved images.


PACS

81.16.Ta Atom manipulation

61.46.-w Structure of nanoscale materials

Subjects

Nanoscale science and low-D systems

Dates

Issue 36 (12 September 2007)

Received 11 April 2007, in final form 10 July 2007

Published 14 August 2007



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