Communication: The electronic structure of matter probed with a single femtosecond hard x-ray pulse

J. Szlachetko, C. J. Milne, J. Hoszowska, J. Cl Dousse, W. Błachucki, J. Sá, Y. Kayser, M. Messerschmidt, R. Abela, S. Boutet, C. David, G. Williams, M. Pajek, B. D. Patterson, G. Smolentsev, J. A. van Bokhoven, M. Nachtegaal