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Description
Magnetic impurities on a superconductor act as scattering centers for the Cooper pairs of the latter and thereby induce a bound state, called Yu-Shiba-Rusinov state, in their vicinity. The spatial extent of these Yu-Shiba-Rusinov states is of several nanometers which allows for hybridization between them.
Here, we observe the formation of a Kagome lattice after deposition of iron(III)-porphine-chloride molecules on Pb(111) and subsequent annealing. The lattice is composed of triangular units made of three iron-porphine molecules and one Cl adatom. By investigating small structures made of a few of these triangular units we can prove that the Yu-Shiba-Rusinov states induced by the molecules hybridize with one another within these structures. We are thus able to produce a two-dimensional coupled network by molecular self-assembly.
