Berlin 2005 – wissenschaftliches Programm
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O: Oberflächenphysik
O 30: Adsorption an Oberfl
ächen III
O 30.9: Vortrag
Montag, 7. März 2005, 12:45–13:00, TU EB301
Study of the intramolecular deformation of a Lander molecule during its Low Temperature STM manipulation on Cu(211) — •Micol Alemani, Francesca Moresco, Leo Gross, and Karl-Heinz Rieder — Inst. für Exp.physik, FU Berlin, Arnimallee 14, D-14195 Berlin
A detailed Low-Temperature Scanning Tunneling Microscope study of the controlled manipulation of a Lander molecule C90H98 adsorbed on Cu(211) is presented. By recording the tunneling current signal I(x) during the manipulation in constant-height-mode and by comparing it with calculations, we demonstrate that I(x) provides information on the mechanical movements of parts of the molecule that are not directly in interaction with the tip apex during the manipulation sequence. This is due to the fact that the intramolecular deformation induced by the manipulation can open other tunneling paths which are not directly located on the point of the molecule in close contact with the tip apex.