1. Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
2. Institute of Physics, University of Tartu, EE-50411 Tartu, Estonia
3. Department of Materials Science and Applied Mathematics, Malmö University, SE-20506 Malmö, Sweden
4. Department of Physics, Lund University, SE-20100 Lund, Sweden
5. MAX IV Laboratory, Lund University, SE-20100 Lund, Sweden
6. Laboratoire de Chimie Physique-Matière et Rayonnement, UMR 7614, CNRS, Sorbonne University, FR-75005 Paris, France