1. Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569 Stuttgart, Germany.
2. ISIS Neutron Pulsed Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Oxford OX11 0QX, UK.
3. Department of Chemistry, Princeton University, Princeton, NJ 08544, USA.
4. Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain.
5. Ikerbasque, Basque Foundation for Science, E-48011 Bilbao, Spain.
6. Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany.
7. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
8. Elektronenspeicherring BESSY II, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489 Berlin, Germany.
9. Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
10. Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany.
11. Nanosystems Initiative Munich and Center for Nanoscience, Schellingstrasse 4, 80799 München, Germany.