1. Institute for Theoretical Solid State Physics; RWTH Aachen University; 52056 Aachen Germany
2. I. Institute of Physics (IA); RWTH Aachen University; 52056 Aachen Germany
3. Department of Chemistry and Applied Biosciences and Facoltà di Informatica; ETH Zurich and Università della Svizzera Italiana; 6900 Lugano Switzerland
4. School of Chemistry; The Sackler Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
5. JARA-FIT and JARA-HPC; RWTH Aachen University; 52056 Aachen Germany