Regensburg 2019 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 12: Poster session I

MM 12.15: Poster

Montag, 1. April 2019, 19:15–20:45, Poster C

Tuning the electronic structure of organometallic Kagome systems — •Marius Fuchs, Domenico Di Sante, and Giorgio Sangiovanni — Institut für Theoretische Physik und Astrophysik, Universität Würzburg, D-97074 Würzburg

We investigate organometallic Kagome systems consisting of 2 metal ions coordinated by DCA organic groups. The system was predicted to exhibit characteristic Kagome bands close the the Fermi level as a result of tight binding-like interaction of 'superatomic' p-orbitals originating in the organic system[1]. Our investigation focuses on tuning the electronic structure of synthesizable[2] thin films along with constituent metal ions and possible doping. In that we give special attention to the Fermi surface and its potential instabilities at van-Hove filling.

[1] L. Z. Zhang et al. 2016, Intrinsic Two-Dimensional Organic Topological Insulators in Metal - Dicyanoanthracene Lattices, NanoLetters, 16, 2072 - 2075

[2] G. Pawin et al. 2008, A Surface Coordination Network Based on Substrate-Derived Metal Adatoms with Local Charge Excess, Angew. Chem. Int. Ed. 2008, 47, 8442 - 8445