Abstract
Simultaneous core ionization and core excitation have been observed in the C2H2n (n=1, 2, 3) molecular series using synchrotron radiation and a magnetic bottle time-of-flight electron spectrometer. Rich satellite patterns corresponding to (K-2V) core excited states of the K-1 molecular ions have been identified by detecting in coincidence the photoelectron with the two Auger electrons resulting from the double core hole relaxation. A theoretical model is proposed providing absolute photoionization cross sections and revealing clear signatures of direct (monopolar) and conjugate (dipolar near-edge x-ray absorption fine structure) shakeup lines of comparable magnitude.
| Original language | English |
|---|---|
| Article number | 123001 |
| Journal | Physical Review Letters |
| Volume | 111 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2013 Sep 20 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Nakano, M., Selles, P., Lablanquie, P., Hikosaka, Y., Penent, F., Shigemasa, E., Ito, K., & Carniato, S. (2013). Near-edge X-ray absorption fine structures revealed in core ionization photoelectron spectroscopy. Physical Review Letters, 111(12), [123001]. https://doi.org/10.1103/PhysRevLett.111.123001