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Forces during the Controlled Displacement of PTCDA Molecules on a Ag(111) Surface using Non-Contact Atomic Force Microscopy. 
May 10, 2013   9:00am - 9:30am

Our experiments present a detailed view of the force interactions during the lateral displacement of an individual PTCDA molecule on a Ag(111) surface. Orientation, length, and position of the manipulation path have to be defined properly to avoid complex manipulation patterns. A careful analysis of the df curves is necessary to exclude the occurrence of significant molecule or tip relaxations. This investigation opens the field to more systematic studies addressing also the influence of surface defects, neighboring molecules, or external fields on the manipulation parameters.
Publication: Langewisch et al. Phys. Rev. Lett. 110, 036101 (2013)

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