*
Corresponding authors
a
Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
E-mail:
jochen.kuepper@cfel.de, stephan.stern@desy.de
Web: http://desy.cfel.de/cid/cmi
b
Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
c
Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
d
The Hamburg Center for Ultrafast Imaging, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
e
Aarhus University, Department of Chemistry, 8000 Aarhus C, Denmark
f
Fritz Haber Institute of the MPG, Faradayweg 4–6, 14195 Berlin, Germany
g
Max Planck Advanced Study Group at CFEL, Notkestrasse 85, 22607 Hamburg, Germany
h
FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
i
Max-Born-Institute, Max Born Str. 2a, 12489 Berlin, Germany
j
Max Planck Institute for Nuclear Physics, 69117 Heidelberg, Germany
k
J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
l
Lund University, Department of Physics, P. O. Box 118, 22100 Lund, Sweden
m
Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
n
Max Planck Institute for Medical Research, 69120 Heidelberg, Germany
o
PNSensor GmbH, 81739 Munich, Germany
p
Max Planck Semiconductor Laboratory, 81739 Munich, Germany
q
Department of Physics, Arizona State University, Tempe, AZ 85287, USA
r
Max Planck Institute for Extraterrestrial Physics, 85741 Garching, Germany
s
Aarhus University, Interdisciplinary Nanoscience Center (iNANO), 8000 Aarhus C, Denmark