1. Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, U.K.
2. Chimie ParisTech, PSL University, CNRS, Institut
de Recherche de Chimie Paris, 75005 Paris, France
3. Atomic Weapons Establishment, Aldermaston, Reading RG7 4PR, U.K.
4. Diamond Light Source Ltd, Harwell Science
and Innovation Campus, Didcot OX11 0DE, U.K.
5. Paul Scherrer Institute, Photon Science Division, WLGA/229 Forschungsstrasse 111, 5232 Villigen, Switzerland
6. SUPA, School of Physics & Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Edinburgh EH9 3JZ, U.K.
7. Department of Materials Sciences & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, U.K.