1. Institute of Physical Chemistry and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
2. Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, Strasbourg F-67081, France
3. Centre Européen de Sciences Quantiques (CESQ) within the Institut de Science et d’Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard Monge, BP 70028, 67083, Strasbourg, Cedex, France
4. Institute of Nanotechnology (INT), and Institute for Quantum Materials and Technology (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Plats 1, D-76344, Eggenstein-Leopoldshafen, Germany