* Corresponding authors

^a Technical University of Darmstadt, Department of Materials and Earth Sciences, Materials and Resources, Alarich-Weiss-Straße 2, 64287 Darmstadt, Germany
E-mail: anke.weidenkaff@mr.tu-darmstadt.de, marc.widenmeyer@mr.tu-darmstadt.de

^b University of Stuttgart, Institute for Materials Science, Heisenbergstraße 3, 70569 Stuttgart, Germany

^c Department of Chemistry, University of California, One Shields Avenue, Davis, CA, USA

^d Central Scientific Facility Materials, Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569 Stuttgart, Germany

^e European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France

^f Department of Chemistry, University of Pavia, Pavia, Italy

^g Universidad Carlos III de Madrid (UC3M), Department of Physics, Av. de la Universidad 30, Leganés, Madrid, Spain

^h Spanish CRG BM25 SpLine Beamline at the ESRF, 71 Avenue des Martyrs, Grenoble, France

ⁱ Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), C Sor Juana Inés de la Cruz 3, Madrid, Spain

^j Max Planck Institute for Intelligent Systems, Modern Magnetic Systems, Heisenbergstraße 3, 70569 Stuttgart, Germany

^k Technical University of Darmstadt, Department of Materials and Earth Sciences, Theory of Magnetic Materials, Otto-Berndt-Straße 3, 64287 Darmstadt, Germany

^l Fraunhofer IWKS, Rodenbacher Chaussee 4, 63457 Hanau, Germany