SKM 2023 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 38: Poster: Organic Molecules on Inorganic Substrates II
O 38.1: Poster
Dienstag, 28. März 2023, 18:00–20:00, P2/EG
Engineering two-dimensional metal-organic networks on ferromagnetic surfaces — •Martin Anstett1, Lu Lyu1, Ka Man Yu1, Martin Aeschlimann1, and Benjamin Stadtmüller1,2 — 1Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany — 2Institute of Physics, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
Two-dimensional metal-organic networks (MONs) on noble-metal surfaces have been identified as versatile nanoarchitecture to manipulate electronic and magnetic properties at surfaces. In this contribution, we discuss the growth and the structure formation of a Co-T4PT network on epitaxial Co films grown on an Au(111) single crystal. Using scanning tunnelling microscopy, we will show that the T4PT molecules can coordinate with native Co adatoms forming a long-range ordered two-dimensional porous network structure. This network can further act as a decoupling and templating layer for the subsequent growth of C60 guest molecules. For a C60 sub-monolayer, we find that the periodicity of the network structure mainly determines the adsorption configurations of isolated C60 molecules while the structural properties of ordered C60 islands on the Co-T4PT network are substantially influenced by the intermolecular interaction between the C60 molecules. The findings show that the MON system can be a very flexible template to tailor the interfacial properties of molecular assemblies for molecular-based spintronics and electronics.