Reversible Vertical Manipulations of Single Pt Adatom on Pt(111) Surface with a Triple-Apex Tip
XIE Yi-Qun, LIU Qing-Wei, ZHANG Peng, LI Yu-Fen, GAN Fu-Xi, ZHUANG Jun
Department of Optical Science and Engineering, State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Fudan University, Shanghai 200433
Reversible Vertical Manipulations of Single Pt Adatom on Pt(111) Surface with a Triple-Apex Tip
XIE Yi-Qun;LIU Qing-Wei;ZHANG Peng;LI Yu-Fen;GAN Fu-Xi;ZHUANG Jun
Department of Optical Science and Engineering, State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Fudan University, Shanghai 200433
摘要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 manipulations are completed using only the atomic force between the tip and the adatom, without the electric field.
Abstract：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 manipulations are completed using only the atomic force between the tip and the adatom, without the electric field.
XIE Yi-Qun;LIU Qing-Wei;ZHANG Peng;LI Yu-Fen;GAN Fu-Xi;ZHUANG Jun. Reversible Vertical Manipulations of Single Pt Adatom on Pt(111) Surface with a Triple-Apex Tip[J]. 中国物理快报, 2008, 25(3): 1056-1059.
XIE Yi-Qun, LIU Qing-Wei, ZHANG Peng, LI Yu-Fen, GAN Fu-Xi, ZHUANG Jun. Reversible Vertical Manipulations of Single Pt Adatom on Pt(111) Surface with a Triple-Apex Tip. Chin. Phys. Lett., 2008, 25(3): 1056-1059.
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2008, Vol. 25 
