1. Institute of Nanotechnology Karlsruhe Institute of Technology P.O. Box 3640 76021 Karlsruhe Germany
2. Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage Helmholtzstraße 11 Ulm 89081 Germany
3. Institute for Quantum Materials and Technologies (IQMT) Karlsruhe Institute of Technology P.O. Box 3640 76021 Karlsruhe Germany
4. Centre Européen de Science Quantique (CESQ) Institut de Science et d'Ingénierie Supramoléculaires (ISIS) Université de Strasbourg 8, Allée Gaspard Monge 67000 Strasbourg France