Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5395818 | Journal of Electron Spectroscopy and Related Phenomena | 2014 | 5 Pages |
Abstract
We have studied single photon double K-shell ionization of small molecules (N2, CO, C2H2n (n = 1-3), â¦) and the Auger decay of the resulting double core hole (DCH) molecular ions thanks to multi-electron coincidence spectroscopy using a magnetic bottle time-of-flight spectrometer. The relative cross-sections for single-site (Kâ2) and two-site (Kâ1Kâ1) double K-shell ionization with respect to single K-shell (Kâ1) ionization have been measured that gives important information on the mechanisms of single photon double ionization. The spectroscopy of two-site (Kâ1Kâ1) DCH states in the C2H2n (n = 1-3) series shows important chemical shifts due to a strong dependence on the CC bond length. In addition, the complete cascade Auger decay following single site (Kâ2) ionization has been obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
F. Penent, M. Nakano, M. Tashiro, T.P. Grozdanov, M. Žitnik, S. Carniato, P. Selles, L. Andric, P. Lablanquie, J. Palaudoux, E. Shigemasa, H. Iwayama, Y. Hikosaka, K. Soejima, I.H. Suzuki, N. Kouchi, K. Ito,