Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 33: Surface Magnetism II (jointly with O)

MA 33.3: Vortrag

Mittwoch, 9. März 2016, 15:30–15:45, H31

Magnetic Properties of Hybrid Organic-Ferromagnetic Interfaces — •Nicolae Atodiresei, Vasile Caciuc, Rico Friedrich, and Stefan Blügel — Peter Grünberg Institut (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52425 Jülich, Germany

Engineering the functionalities in organic spintronic devices requires a reliable description of the electronic properties of the hybrid interface formed by the adsorption of carbon-based materials on magnetic surfaces. The density functional theory provides a framework with predictive power and realistic description of these organic-magnetic hybrid systems. We will present first-principles calculations that demonstrate how the subtle interplay between the chemical, electrostatic and the weak van der Waals adsorption mechanisms determines the geometry, electronic and magnetic structure of such hybrid interfaces. These theoretical studies provide the basic insights required to understand the surface-science experiments and are a key tool to design hybrid interfaces with specific magnetic properties that can be tuned by an appropriate choice of the organic material and magnetic surface. [1] K. V. Raman et al., Nature 493, 509 (2013); [2] M. Callsen et al., Phys. Rev. Lett. 111, 106805 (2013). [3] N. Atodiresei et al., MRS Bulletin 39, 596 (2014). [4] J. Brede et al., Nat. Nanotech. 9, 1018 (2014).