Near-edge X-ray absorption fine structures revealed in core ionization photoelectron spectroscopy

M. Nakano, P. Selles, P. Lablanquie, Y. Hikosaka, F. Penent, E. Shigemasa, K. Ito, S. Carniato

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

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 languageEnglish
Article number123001
JournalPhysical Review Letters
Volume111
Issue number12
DOIs
Publication statusPublished - 2013 Sep 20
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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