University of Oulu

Keskinen, J., Lablanquie, P., Penent, F., Palaudoux, J., Andric, L., Cubaynes, D., Bizau, J., Huttula, M., Jänkälä, K. (2017) Initial-state-selected MNN Auger spectroscopy of atomic rubidium. Physical Review A, 95 (4), . doi:10.1103/PhysRevA.95.043402

Initial-state-selected MNN Auger spectroscopy of atomic rubidium

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Author: Keskinen, Juho1; Lablanquie, P.2; Penent, F.2;
Organizations: 1Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, 90014 Oulu, Finland
2Sorbonne Universités, UPMC Université Paris 06, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matiére et Rayonnement, 4 place Jussieu, F-75252 Paris Cedex 05, France
3Université Paris-Est, 5 boulevard Descartes, F-77454 Marne-la Vallée Cedex 2, France
4Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Université Paris Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, )
Persistent link: http://urn.fi/urn:nbn:fi-fe201706207380
Language: English
Published: American Physical Society , 2017
Publish Date: 2017-06-20
Description:

Abstract

The M4,5N2,3N2,3 and M4,5N1N2,3 Auger decay of atomic Rb have been studied by using photoelectron-Auger electron coincidence measurements that enable initial ionic state selected Auger spectroscopy. The Auger spectra in the present study are separated by the total angular momentum j of the 3d hole and the orbital of the valence electron nℓ after photoionization. It is shown that the technique allows isolating overlapping features and the study of otherwise unobservable spectral details, from which the presence of shake-down transitions during normal Auger decay is demonstrated experimentally. The technique allows also probing the effects of initial state parity and electron correlation in Auger electron spectroscopy. The observed spectral features are interpreted with theoretical predictions obtained from configuration interaction Dirac-Fock approach.
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Series: Physical Review A
ISSN: 2469-9926
ISSN-E: 2469-9934
ISSN-L: 2469-9926
Volume: 95
Issue: 4
Pages: 043402-1 - 043402-7
DOI: 10.1103/PhysRevA.95.043402
OADOI: https://oadoi.org/10.1103/PhysRevA.95.043402
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Subjects:
Funding: This work has been financially supported by the Research Council for Natural Sciences and Engineering of the Academy of Finland. J.K. acknowledges EXACTUS-DP (Doctoral Program in Exact Sciences) and the Magnus Ehrnrooth foundation. The experiments were carried out during SOLEIL beamtime project 20131019. The staff of SOLEIL synchrotron and PLÉIADES beamline are acknowledged for assistance during the measurements.
Copyright information: ©2017 American Physical Society