Berlin 2018 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 96: Focus Session: Molecular Nanostructures on surfaces - New Concepts towards Complex Architectures VI
O 96.12: Vortrag
Donnerstag, 15. März 2018, 18:00–18:15, MA 004
Magnetism of Salophene based molecules — •Emil Sierda1,2, Micha Elsebach1, Maciej Bazarnik1,2, and Roland Wiesendanger1 — 1Department of Physics, University of Hamburg, Jungiusstrasse 11, D-20355, Hamburg, Germany — 2Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965, Poznan, Poland
Advances in molecular spintronics rely on the in-depth characterization of the molecular building blocks in terms of their electronic and magnetic properties. For this purpose inert substrates are required that will interact only weakly with adsorbed molecules in order to preserve their electronic states. Magnetic substrates, on the other hand, are useful for stabilizing the magnetic moment of a molecule, thereby making it accessible for investigations by spin-polarized scanning tunneling microscopy (SP-STM) [1].
Here, we present a SP-STM study of Salophene-based molecules with different transition metal centers adsorbed on Co-intercalated graphene on Ir(111) [2]. This substrate is an ideal choice for a thorough characterization of the molecules* electronic and magnetic states. In particular, such studies reveal the differences in magnetic structure between molecules with different transition metal centers. Based on these insights the most promising molecules in view of future molecular spintronic devices can be identified.
[1] Schwöbel, J. et al. Nat. Comm. 3, 953 (2012). [2] Decker R. et al. Phys. Rev. B 87, 041403 (2013).