Xie Yi-Qun et al 2008 Chinese Phys. Lett. 25 1056 doi:10.1088/0256-307X/25/3/068
Xie Yi-Qun1, Liu Qing-Wei1, Zhang Peng1, Li Yu-Fen1, Gan Fu-Xi1 and Zhuang Jun1
Show affiliationsWith a triple-apex tip, we investigate theoretically the vertical manipulation of single Pt adatom on the Pt(111) surface. The adatom adsorbed on the fcc site of the flat Pt(111) surface can be transferred vertically to the tip by adjusting the tip height properly. Moreover, based on the strong vertical trapping ability and the relatively weak lateral trapping ability of the tip, we propose a simple method to realize a reversible vertical manipulation of the Pt adatom from the highly coordinated sites, the kink and the step sites, of the stepped Pt(111) surface. All the vertical manipulations are completed using only the atomic force between the tip and the adatom, without the electric field.
68.35.Ja Surface and interface dynamics and vibrations
68.37.Ps Atomic force microscopy (AFM)
68.35.B- Structure of clean surfaces (and surface reconstruction)
Issue 3 (March 2008)
Received 26 September 2007
Xie Yi-Qun et al 2008 Chinese Phys. Lett. 25 1056
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