Daniele Antonangeli¹⁰, Karen Appel¹, Marzena Baron¹¹, Silvia Boccato¹⁰, Khachiwan Buakor¹, Julien Chantel⁶, Hyunchae Cynn¹², Anand P. Dwivedi¹, Lars Ehm⁹, Konstantin Glazyrin⁷, Heinz Graafsma⁷, Egor Koemets^13,14, Torsten Laurus⁷, Hauke Marquardt¹³, Bernhard Massani³, James D. McHardy³, Malcolm I. McMahon³, Vitali Prakapenka¹⁵, Jolanta Sztuk-Dambietz¹, Minxue Tang⁷, Tianqi Xie^16,9, Zena Younes³, Ulf Zastrau¹, Alexander F. Goncharov², Clemens Prescher¹⁷, Ryan S. McWilliams³, Guillaume Morard^10,8, and Sébastien Merkel⁶

• ¹European XFEL, Schenefeld, Germany
• ²Earth & Planets Laboratory, Carnegie Science, 5251 Broad Branch Rd NW, Washington, DC 20015, USA
• ³SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions (CSEC), The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom
• ⁴CEA, DAM, DIF, 91297 Arpajon, France
• ⁵Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
• ⁶Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
• ⁷Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
• ⁸ISTerre, Université Grenoble Alpes, CNRS, Grenoble, France
• ⁹Department of Geosciences, Stony Brook University, Stony Brook, New York 11794-2100, USA
• ¹⁰Sorbonne Université, Muséum National d'Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Paris, France
• ¹¹Sorbonne Université, CNRS, Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), 4 place Jussieu, 75005 Paris, France
• ¹²Lawrence Livermore National Laboratory, Physical and Life Science Directorate, Livermore, California 94550, USA
• ¹³Department of Earth Sciences, University of Oxford, 3 South Parks Road, OX1 3AN Oxford, United Kingdom
• ¹⁴Diamond Light Source, Didcot, United Kingdom
• ¹⁵Center for Advanced Radiation Sources, The University of Chicago, Chicago, Illinois 60637, USA
• ¹⁶Department of Geological Sciences, University of Saskatchewan, Saskatoon, Canada
• ¹⁷University of Freiburg, Freiburg, Germany

• ^*These authors contributed equally to this work.
• ^†Contact author: zuzana.konopkova@xfel.eu
• ^‡Present address: Universität Münster, Münster, Germany.