Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 15: STM/AFM: New Approaches
O 15.6: Vortrag
Montag, 7. März 2016, 16:30–16:45, H24
High-resolution AFM/STM imaging and force spectroscopy of van der Walls nanostructures on metal surface — •Martin Svec1, Oleksander Stetsovych1, Jan Berger1, Pavel Hobza2, and Pavel Jelinek1 — 1Institute of Physics AS CR, Prague, CZ — 2Institute of Organic Chemistry and Biochemistry AS CR, Prague, CZ
Proper theoretical description of the weak vdW interaction, despite the large effort, still remains elusive and is intensely investigated. We prepared and investigated vdW nanostructures made of CO and Xe co-deposited on Ag(111) surface by a high-resolution 3D mapping with the AFM technique. We identify the atomic structure of such formations. In addition, we use the force-distance spectroscopy data, acquired with functionalized (CO, Xe) tips to gain direct access to the vdW forces acting between two well-defined systems. Such information provides a unique opportunity to benchmark the available theoretical methods employed to describe the vdW interaction. We will provide a direct comparison of various vdW methods to the experimental data.