Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 13: Magnetic Surface Excitations
O 13.7: Vortrag
Montag, 7. März 2016, 16:45–17:00, S052
Tuning magnetic coupling between organic-metal hybrids mediated by a nanoskyrmion lattice — •Maciej Bazarnik1, Jens Brede2, and Roland Wiesendanger1 — 1Dept. of Physics, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany — 2Donostia International Physics Center, Paseo Manuel de Lardizabal 4 20018 Donostia - San Sebastian, Spain
Molecular spintronic devices offer great potential for future energy-efficient information technology as they combine ultimately small size, high-speed operation, and low-power consumption. There are two approaches to molecular spintronics: first, to utilize the intrinsic properties of molecules by depositing them on weakly interacting surfaces like thin film insulators, graphene, or gold; second, to make use of new properties of organic-metal hybrids created by strong hybridization of molecular orbitals with the substrate such as iron films on iridium [1].
Here, we take the latter approach to control the magnetic properties of organic-metal hybrids and tune the magnetic coupling. We show how to position fullerene molecules on the skyrmionic lattice of a single atomic layer of iron on an iridium substrate utilizing the STM-based atomic manipulation techniques, in order to tune the magnetic interactions between them.
[1] J. Brede et al. Nature Nano. 9 (2014) 1018-1023