TY - JOUR
T1 - Si 1s-1, 2s-1 and 2p-1 lifetime broadening of SiX4 (X = F, Cl, Br, CH3) molecules
T2 - SiF4 anomalous behaviour reassessed
AU - Püttner, Ralph
AU - Marchenko, Tatiana
AU - Guillemin, Renaud
AU - Journel, Loïc
AU - Goldsztejn, Gildas
AU - Céolin, Denis
AU - Takahashi, Osamu
AU - Ueda, Kiyoshi
AU - Lago, Alexsandre F.
AU - Piancastelli, Maria Novella
AU - Simon, Marc
N1 - Funding Information:
Experiments were performed on the GALAXIES beamline at the SOLEIL synchrotron, France (Project No. 20130917). We are grateful to the SOLEIL staff for the smooth operation of the facility. The work at the Freie Universität Berlin was supported by the Deutsche Forschungsgemeinschaft under project no. PU180/6-1.
Funding Information:
OT and KU acknowledge the support by the Research Program of ‘‘Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials’’ in ‘‘Network Joint Research Center for Materials and Devices’’. AFL thanks the Brazilian funding agencies CAPES and CNPq for the support. RP is grateful to Dr Pˇremysl Kolorenˇc, Dr Uwe Hergenhahn, and Prof. Dr Reinhold Fink for helpful discussions.
Publisher Copyright:
© 2019 the Owner Societies.
PY - 2019
Y1 - 2019
N2 - The Si 1s-1, Si 2s-1, and Si 2p-1 photoelectron spectra of the SiX4 molecules with X = F, Cl, Br, CH3 were measured. From these spectra the Si 1s-1 and Si 2s-1 lifetime broadenings were determined, revealing a significantly larger value for the Si 2s-1 core hole of SiF4 than for the same core hole of the other molecules of the sequence. This finding is in line with the results of the Si 2p-1 core holes of a number of SiX4 molecules, with an exceptionally large broadening for SiF4. For the Si 2s-1 core hole of SiF4 the difference to the other SiX4 molecules can be explained in terms of Interatomic Coulomb Decay (ICD)-like processes. For the Si 2p-1 core hole of SiF4 the estimated values for the sum of the Intraatomic Auger Electron Decay (IAED) and ICD-like processes are too small to explain the observed linewidth. However, the results of the given discussion render for SiF4 significant contributions from Electron Transfer Mediated Decay (ETMD)-like processes at least plausible. On the grounds of our results, some more molecular systems in which similar processes can be observed are identified.
AB - The Si 1s-1, Si 2s-1, and Si 2p-1 photoelectron spectra of the SiX4 molecules with X = F, Cl, Br, CH3 were measured. From these spectra the Si 1s-1 and Si 2s-1 lifetime broadenings were determined, revealing a significantly larger value for the Si 2s-1 core hole of SiF4 than for the same core hole of the other molecules of the sequence. This finding is in line with the results of the Si 2p-1 core holes of a number of SiX4 molecules, with an exceptionally large broadening for SiF4. For the Si 2s-1 core hole of SiF4 the difference to the other SiX4 molecules can be explained in terms of Interatomic Coulomb Decay (ICD)-like processes. For the Si 2p-1 core hole of SiF4 the estimated values for the sum of the Intraatomic Auger Electron Decay (IAED) and ICD-like processes are too small to explain the observed linewidth. However, the results of the given discussion render for SiF4 significant contributions from Electron Transfer Mediated Decay (ETMD)-like processes at least plausible. On the grounds of our results, some more molecular systems in which similar processes can be observed are identified.
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U2 - 10.1039/c8cp07369d
DO - 10.1039/c8cp07369d
M3 - Article
C2 - 30972388
AN - SCOPUS:85064992023
VL - 21
SP - 8827
EP - 8836
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 17
ER -