1. Department of Physics University of Zurich Winterthurerstrasse 190 Zurich 8057 Switzerland
2. Department of Chemistry Biochemistry and Pharmaceutical Sciences University of Bern Freiestrasse 3 Bern 3012 Switzerland
3. Electron Microscopy Center Empa Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 Dübendorf 8600 Switzerland
4. Swiss Light Source Paul Scherrer Institut Villigen 5232 Switzerland
5. ALBA Synchrotron Light Source Carrer de la Llum 2‐26 Cerdanyola del Vallès 08290 Spain