University of Oulu

Piancastelli, M., Jänkälä, K., Journel, L., Gejo, T., Kohmura, Y., Huttula, M., Simon, M., Oura, M. (2017) X-ray versus Auger emission following Xe 1s photoionization. Physical Review A, 95 (6), doi:10.1103/PhysRevA.95.061402

X-ray versus Auger emission following Xe 1s photoionization

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Author: Piancastelli, M. N.1,2,3; Jänkälä, K.4; Journel, L.1,3;
Organizations: 1Sorbonne Universités, UPMC Université Paris 06, CNRS, UMR 7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France
2Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
3RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sago-gun, Hyogo 679-5148, Japan
4Nano and Molecular Systems Research Unit, University of Oulu, Box 3000, FI-90014, Oulu, Finland
5Graduate School of Materials Science, University of Hyogo, Kamigori-cho, Ako-gun 678-1297, Japan
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.9 MB)
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Language: English
Published: American Physical Society, 2017
Publish Date: 2017-06-20


Xe 1s photoelectron spectra were measured at SPring-8, Japan. The core-hole lifetime broadening was found to be 9.6 eV, yielding a lifetime of ~68 as. The amount of radiative versus nonradiative decay was assessed by recording Auger LMM spectra below and above the K edge. Below the K edge, L vacancies are produced only by direct photoionization, while above the K edge some of these vacancies are mainly produced by KL emission following 1s photoionization. Due to the dipole selection rule for x-ray emission, the dominant role of the KL relaxation process is rather directly observed.

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Series: Physical review. A
ISSN: 2469-9926
ISSN-E: 2469-9934
ISSN-L: 2469-9926
Volume: 95
Issue: 6
Pages: 061402-1 - 061402-6
Article number: 061402(R)
DOI: 10.1103/PhysRevA.95.061402
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Copyright information: ©2017 American Physical Society