Investigation of valence inter-multiplet Auger transitions in Ne following 1s photoelectron recapture

A. De Fanis, G. Prümper, U. Hergenhahn, E. Kukk, T. Tanaka, M. Kitajima, H. Tanaka, S. Fritzsche, N. M. Kabachnik, K. Ueda

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23 Citations (Scopus)

Abstract

We employ a novel technique in which highly excited Rydberg states of Ne+ 2p4np are populated via PCI-induced recapture of the near-threshold 1s photoelectron (De Fanis et al 2004 Phys. Rev. A 70 040702) to investigate valence inter-multiplet Auger transitions. The following series of the transitions have been observed: Ne+ 2p4( 1D)np 2L → Ne2+ 2p4 3PJ, Ne+ 2p4(1S)np 2P →Ne2+ 2p4 3PJ and Ne+ 2p4(1S)np 2P →Ne 2+ 2p4 1D. Their energy positions, quantum defects and the anisotropy parameters of the Auger electron emission have been determined. Experimental results are in good agreement with multi-configuration Dirac-Fock calculations carried out as a part of this study. The importance of interference effects for decays via naturally overlapping fine-structure components of the intermediate state is discussed.

Original languageEnglish
Pages (from-to)2229-2243
Number of pages15
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume38
Issue number13
DOIs
Publication statusPublished - 2005 Jul 14

ASJC Scopus subject areas

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

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