Journal
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
Volume 187, Issue -, Pages 9-14Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.elspec.2013.03.006
Keywords
X-ray emission spectroscopy; Surface science; Free electron laser; Ultrafast
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Funding
- LCLS, Stanford University through the Stanford Institute for Materials Energy Sciences (SIMES)
- Lawrence Berkeley National Laboratory (LBNL)
- University of Hamburg through the BMBF priority program FSP 301
- Center for Free Electron Laser Science (CFEL)
- US Department of Energy's Office of Basic Energy Sciences
- Japan Science and Technology Agency
- Swedish research council (VR)
- Alexander von Humboldt foundation
- VolkswagenStiftung
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We report on an experimental system designed to probe chemical reactions on solid surfaces on a sub-picosecond timescale using soft X-ray emission spectroscopy at the Linac Coherent Light Source (LCLS) free electron laser (FEL) at the SLAC National Accelerator Laboratory. We analyzed the O 1s X-ray emission spectra recorded from atomic oxygen adsorbed on a Ru(0001) surface at a synchrotron beamline (SSRL, BL13-2) and an FEL beamline (LCLS, SXR). We have demonstrated conditions that provide negligible amount of FEL induced damage of the sample. In addition we show that the setup is capable of tracking the temporal evolution of electronic structure during a surface reaction of submonolayer quantities of CO molecules desorbing from the surface. Published by Elsevier B.V.
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