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Interference Quenching of [Formula presented] Vibrational Line in Resonant Photoemission of [Formula presented]: A Possibility to Obtain Geometrical Information on the Core-Excited State

  • R. Feifel
  • , F. Gel’mukhanov
  • , A. Baev
  • , H. Ågren
  • , M. N. Piancastelli
  • , M. Bässler
  • , C. Miron
  • , S. L. Sorensen
  • , A. Naves de Brito
  • , O. Björneholm
  • , L. Karlsson
  • , S. Svensson
  • Uppsala University
  • KTH Royal Institute of Technology
  • Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences
  • University of Rome Tor Vergata
  • Université Paris-Saclay
  • CNRS-URA 2453-DSM/DRECAM/SPAM CEA Saclay
  • Lund University
  • Centro Nacional de Pesquisa em Energia e Materiais

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

An interference quenching of the [Formula presented] vibrational line in the resonant Auger decay of N [Formula presented] core-excited [Formula presented] is observed and analyzed. The intensity ratio between the [Formula presented] and [Formula presented] vibrational levels of the [Formula presented] final state shows a surprising nonmonotonous variation as a function of frequency detuning, going through a minimum with a complete suppression of [Formula presented]. We have developed a simple model which shows a linear relation between the value of the detuning frequency for this minimum and the equilibrium bond distance [Formula presented] of the core-excited state. A new way is thus established of determining the equilibrium bond distance for the core-excited state with a precision [Formula presented].

Original languageEnglish
JournalPhysical Review Letters
Volume89
Issue number10
DOIs
StatePublished - 2002

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