Berlin 2018 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 52: Poster: Electronic structure: Surface Magnetism and Spin Phenomena
O 52.3: Poster
Dienstag, 13. März 2018, 18:15–20:30, Poster B
Scanning tunneling microscopy and spectroscopy of endohedral fullerenes on metallic substrates — •Emmanouil Koutsouflakis, Sebastian Schimmel, Zhixiang Sun, Denis Krylov, Danny Baumann, Alexey Popov, Bernd Büchner, and Christian Hess — Leibniz-Institute for Solid State and Materials Research, IFW-Dresden, 01069 Dresden, Germany
Single Molecule Magnets (SMMs) are molecular materials whose molecules may exhibit magnetic properties such as magnetization under zero-field conditions, large relaxation times and high blocking temperatures. However towards molecular electronics and the subsequent controlled manipulation of single spins in SMMs, the obstacle of the insufficient chemical stability of many SMM architectures has to be overcome, in order to facilitate both their organization on substrates and the preservation of their properties.
We report on the investigation of resolving the limiting applicability of SMMs in molecular spintronics by the use of Endohedral Metallofullerenes (EMFs). We research on the alternative of the trimetallic nitride EMFs of the type A3−nBnN@C80 (n=0-3; A, B rare earth metals or transition metals) where a carbon cage encapsulates a triangular cluster of three rare earth/ transition metal atoms and a nitrogen at its center. In particular, we evaporate Dy-based EMFs on metallic substrates and in order to probe the feasible monolayer coverage and to estimate the adsorption characteristics and the electronic structure of the deposited molecules we performed Scanning Tunneling Microscopy and Spectroscopy.