@article{JohanssonLeitnerBidermaneetal.2022,
  author    = {Johansson, Fredrik O. L. and Leitner, Torsten and Bidermane, Ieva and Born, Artur and F{\"o}hlisch, Alexander and Svensson, Svante and M{\aa}rtensson, Nils and Lindblad, Andreas},
  title     = {Auger- and photoelectron coincidences of molecular O2 adsorbed on Ag(111)},
  series = {Journal of electron spectroscopy and related phenomena : the international journal on theoretical and experimental aspects of electron spectroscopy},
  volume    = {256},
  journal   = {Journal of electron spectroscopy and related phenomena : the international journal on theoretical and experimental aspects of electron spectroscopy},
  publisher = {Elsevier},
  address   = {New York, NY [u.a.]},
  issn      = {0368-2048},
  doi       = {10.1016/j.elspec.2022.147174},
  pages     = {6},
  year      = {2022},
  abstract  = {The oxygen on Ag(111) system has been investigated with Auger electron-photoelectron coincidence spectroscopy (APECS). The coincidence spectra between O 1s core level photoelectrons and O KLL Auger electrons have been studied together with Ag(3)d/AgM4,5NN coincidences. We also describe the electron-electron coincidence spectrometer setup, CoESCA, consisting of two angle resolved time-of-flight spectrometers at a synchrotron light source. Contributions from molecular oxygen and chemisorbed oxygen are assigned using the coincidence data, conclusions are drawn primarily from the O 1s/O KLL data. The data acquisition and treatment procedure are also outlined. The chemisorbed oxygen species observed are relevant for the catalytic ethylene oxidation.},
  language  = {en}
}
@article{BornJohanssonLeitneretal.2022,
  author    = {Born, Artur and Johansson, Fredrik O. L. and Leitner, Torsten and Bidermane, Ieva and Kuehn, Danilo and Martensson, Nils and F{\"o}hlisch, Alexander},
  title     = {The degree of electron itinerancy and shell closing in the core-ionized state of transition metals probed by Auger-photoelectron coincidence spectroscopy},
  series = {Physical chemistry, chemical physics : a journal of European Chemical Societies},
  volume    = {24},
  journal   = {Physical chemistry, chemical physics : a journal of European Chemical Societies},
  number    = {32},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1463-9076},
  doi       = {10.1039/d2cp02477b},
  pages     = {19218 -- 19222},
  year      = {2022},
  abstract  = {Auger-photoelectron coincidence spectroscopy (APECS) has been used to examine the electron correlation and itinerance effects in transition metals Cu, Ni and Co. It is shown that the LVV Auger, in coincidence with 2p photoelectrons, spectra can be represented using atomic multiplet positions if the 3d-shell is localized (atomic-like) and with a self-convoluted valence band for band-like (itinerant) materials as explained using the Cini-Sawatzky model. For transition metals, the 3d band changes from band-like to localized with increasing atomic number, with the possibility of a mixed behavior. Our result shows that the LVV spectra of Cu can be represented by atomic multiplet calculations, those of Co resemble the self-convolution of the valence band and those of Ni are a mixture of both, consistent with the Cini-Sawatzky model.},
  language  = {en}
}