State-dependent gerade/ungerade intensity ratios in the Auger spectrum of N2

R. Püttner, Hironobu Fukuzawa, X. J. Liu, S. K. Semenov, N. A. Cherepkov, T. Tanaka, M. Hoshino, H. Tanaka, Kiyoshi Ueda

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17 Citations (Scopus)

Abstract

We have applied both high-resolution photoelectron and Auger spectroscopy to study the N 1s core ionization of N2. From the respective spectra we are able to show that the Auger decay involves delocalized description of core-hole states. Specifically, the Auger spectra of the N 1sσ g,u core holes to the quasi-stable final states X1Σ +g and D1Σ+u are presented. They exhibit the gerade/ungerade splitting as well as vibrational progressions. The 1sσg/1sσu Auger intensity ratios are, in agreement with ab initio calculations, ≅2.1 and ≅0.8 for the X and the D states respectively. The large value for the X state can qualitatively be related to the gerade or ungerade symmetry of the Auger electron.

Original languageEnglish
Article number141001
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume41
Issue number14
DOIs
Publication statusPublished - 2008 Jul 28

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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