Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 1: Focus: Molecularly Functionalized Low-Dimensional Systems I - organized by Antonio Setaro, Carola Meyer, Aravind Vijayaraghvan and Matteo Mannini

CPP 1.8: Vortrag

Montag, 12. März 2018, 12:00–12:15, C 130

Spin-resolved photoemission measurements on a Fullerene monolayer adsorbed on Cu(111) — •Henning Sturmeit¹, Laura Kugler¹, Johannes Stöckl², Benito Arnoldi², Davide Bossini¹, Benjamin Stadtmüller², Martin Aeschlimann², Stefano Ponzoni¹, and Mirko Cinchetti¹ — ¹Experimentelle Physik VI, TU Dortmund, 44227 Dortmund, Germany — ²Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany

Spin-resolved photoemission is a powerful method for the study of metal-organic interfaces. It allows to directly probe the effects of the interaction between the organic adsorbate and the metallic substrate on their electronic structure as well as its influence on the spin properties of the interface. In a recent work [1] it was reported that layered structures of C60 and metallic thin films show emerging ferromagnetic properties even with dia- or paramagnetic metals. Strong indications that the magnetic moment is localized in the metallic layer as well as at the interface were reported, although the physical origin of the ferromagnetic ordering is not yet fully understood. In this framework we performed spin-resolved photoemission measurements on an 4X4 - C60 monolayer absorbed on a Cu(111) surface. We found spin polarized photoemission features in the valence band of the system, although no clear signature of ferromagnetic ordering is detected.

[1] F. Al Ma’Mari, T. Moorsom, G. Teobaldi et al., Nature, 524 (7563), 69-73 (2015)