【摘 要】
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With 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 t
【机 构】
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Department of Optical Science and Engineering,State Key Joint Laboratory for Materials Modification
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With 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 manjpulations are completed using only the atomic force between the tip and the adatom,without the electric field.
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