1. Swiss Light SourcePaul Scherrer Institut (PSI) CH‐5232 Villigen Switzerland
2. Institute of Physics (IPHYS)École Polytechnique Fédérale de Lausanne (EPFL) Station 3 CH‐1015 Lausanne Switzerland
3. Institute of PhysicsThe Czech Academy of Sciences Cukrovarnická 10 CZ‐162 00 Prague 6 Czech Republic
4. Center for Quantum NanoscienceInstitute for Basic Science (IBS) 03760 Seoul Republic of Korea
5. Department of PhysicsEwha Womans University 03760 Seoul Republic of Korea
6. Institute of Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) Hermann‐von‐Helmholtz‐Platz 1 D‐76344 Eggenstein‐Leopoldshafen Germany
7. Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)Centre National de la Recherche Scientifique (CNRS)Université de Strasbourg 23 rue du Loess, BP 43 F‐67034 Strasbourg Cedex 2 France
8. Département de ChimieÉcole Normale Supérieure F‐75005 Paris France
9. Centre National de la Recherche Scientifique (CNRS)Paris Sciences et LettresSorbonne Université F‐75005 Paris France