Dresden 2011 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 36: Poster Session II (Metals; Nanostructures at surfaces; Surface or interface magnetism; Spin-Orbit Interaction at Surfaces; Electron and spin dynamics; Surface dynamics; Methods; Theory and computation of electronic structure)
O 36.55: Poster
Dienstag, 15. März 2011, 18:30–22:00, P4
Investigating metal phthalocyanine molecules on Cu(100) — •Sarah Fahrendorf1, Christian Hahn1, Frank Matthes1, Claire Besson1, Paul Kögerler1, 2, Claus M. Schneider1, and Daniel E. Bürgler1 — 1Peter Grünberg Institut (PGI-6), Forschungszentrum Jülich — 2Institut für Anorganische Chemie, RWTH Aachen
Magnetic molecules play an important role for the further evolution of spintronics to nanospintronics. Organic molecules, such as metal phthalocyanines, show promising properties for the field of nanospintronics due to (i) their electronic tunability e. g. by adding magnetic atoms to the centre or combining two or three single phthalocyanines, (ii) the high thermal stability and (iii) possible self-organization. For envisaged applications it is important to understand the interaction between the substrate and the molecules and its influence on the electronic and magnetic properties.
Here we study the electronic structure of single metal phthalocyanine molecules deposited on Cu(100) surfaces. We chose two different magnetic atoms and molecule configurations, namely iron phthalocyanine (FePc) and neodymium doubledecker phthalocyanine (NdPc2), to investigate the influence of the substrate on molecules with 3d and 4f like centres and different ligand environments of the central atoms. The molecules were sublimated from a Knudsen cell and in-situ characterized by surface science techniques. First results from scanning tunneling microscopy and spectroscopy are shown.