1. Technische Universität Darmstadt
2. Eduard-Zintl-Institut
3. 64287 Darmstadt
4. Germany
5. Department of Physical and Theoretical Chemistry & Laboratory for Advanced Materials
6. Faculty of Natural Sciences
7. Comenius University
8. 84215 Bratislava
9. Slovakia
10. Vienna Center for Quantum Science and Technology (VCQ)
11. Faculty of Physics
12. University of Vienna
13. A-1090 Vienna
14. Austria