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Title: Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule. II. Young-type interference of Auger electrons and its dependence on internuclear distance

Abstract

Theoretical two-center interference patterns produced (i) by the K-shell photoionization process of the N{sub 2} molecule and (ii) by the Auger decay process of the K-shell hole state of the N{sub 2} molecule are compared for the case of equal photo- and Auger-electron energies of about 360 eV. The comparison shows that both the angular distribution of the photoelectrons and the angular distribution of the Auger electrons of equal energy in the molecular frame are primarily defined by the Young interference. The experimental data for the angular resolved K-shell Auger electrons as a function of the kinetic-energy release (KER) obtained earlier [Phys. Rev. A 81, 043426 (2010)] have been renormalized in order to visualize the angular variation in the regions of low Auger-electron intensities. That renormalized data are compared with the corresponding theoretical results. From the known behavior of the potential energy curves, the connection between the KER and the internuclear distance can be established. Since the Young interference pattern is sensitive to the internuclear distance in the molecule, from the measured KER dependence of the Young interference pattern one can trace the behavior of the Auger-electron angular distribution for different molecular terms as a function of internuclear distance. Themore » results of that analysis are in a good agreement with the corresponding theoretical predictions.« less

Authors:
 [1];  [1]; ; ; ; ; ; ; ; ; ;  [2];  [2]; ;  [3]; ; ; ; ;  [4]
  1. State University of Aerospace Instrumentation, 190000 St. Petersburg (Russian Federation)
  2. Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)
  3. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
  4. Lawrence Berkeley National Labararatory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
21448537
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 82; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.82.023420; (c) 2010 The American Physical Society; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; AUGER EFFECT; COMPARATIVE EVALUATIONS; DISTANCE; ELECTRONS; EV RANGE; HOLES; INTERFERENCE; K SHELL; KINETIC ENERGY; MOLECULES; NITROGEN; PHOTOIONIZATION; PHOTON-MOLECULE COLLISIONS; POTENTIAL ENERGY; COLLISIONS; DISTRIBUTION; ELECTRONIC STRUCTURE; ELEMENTARY PARTICLES; ELEMENTS; ENERGY; ENERGY RANGE; EVALUATION; FERMIONS; IONIZATION; LEPTONS; MOLECULE COLLISIONS; NONMETALS; PHOTON COLLISIONS

Citation Formats

Cherepkov, N A, Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Semenov, S K, Schoeffler, M S, Titze, J, Petridis, N, Jahnke, T, Cole, K, Schmidt, L Ph. H., Czasch, A, Jagutzki, O, Schmidt-Boecking, H, Doerner, R, Akoury, D, Lawrence Berkeley National Labararatory, Berkeley, California 94720, Williams, J B, Landers, A L, Osipov, T, Lee, S, Prior, M H, Belkacem, A, and Weber, Th. Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule. II. Young-type interference of Auger electrons and its dependence on internuclear distance. United States: N. p., 2010. Web. doi:10.1103/PHYSREVA.82.023420.
Cherepkov, N A, Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Semenov, S K, Schoeffler, M S, Titze, J, Petridis, N, Jahnke, T, Cole, K, Schmidt, L Ph. H., Czasch, A, Jagutzki, O, Schmidt-Boecking, H, Doerner, R, Akoury, D, Lawrence Berkeley National Labararatory, Berkeley, California 94720, Williams, J B, Landers, A L, Osipov, T, Lee, S, Prior, M H, Belkacem, A, & Weber, Th. Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule. II. Young-type interference of Auger electrons and its dependence on internuclear distance. United States. https://doi.org/10.1103/PHYSREVA.82.023420
Cherepkov, N A, Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Semenov, S K, Schoeffler, M S, Titze, J, Petridis, N, Jahnke, T, Cole, K, Schmidt, L Ph. H., Czasch, A, Jagutzki, O, Schmidt-Boecking, H, Doerner, R, Akoury, D, Lawrence Berkeley National Labararatory, Berkeley, California 94720, Williams, J B, Landers, A L, Osipov, T, Lee, S, Prior, M H, Belkacem, A, and Weber, Th. 2010. "Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule. II. Young-type interference of Auger electrons and its dependence on internuclear distance". United States. https://doi.org/10.1103/PHYSREVA.82.023420.
@article{osti_21448537,
title = {Auger decay of 1{sigma}{sub g} and 1{sigma}{sub u} hole states of the N{sub 2} molecule. II. Young-type interference of Auger electrons and its dependence on internuclear distance},
author = {Cherepkov, N A and Institut fuer Kernphysik, University Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt and Semenov, S K and Schoeffler, M S and Titze, J and Petridis, N and Jahnke, T and Cole, K and Schmidt, L Ph. H. and Czasch, A and Jagutzki, O and Schmidt-Boecking, H and Doerner, R and Akoury, D and Lawrence Berkeley National Labararatory, Berkeley, California 94720 and Williams, J B and Landers, A L and Osipov, T and Lee, S and Prior, M H and Belkacem, A and Weber, Th},
abstractNote = {Theoretical two-center interference patterns produced (i) by the K-shell photoionization process of the N{sub 2} molecule and (ii) by the Auger decay process of the K-shell hole state of the N{sub 2} molecule are compared for the case of equal photo- and Auger-electron energies of about 360 eV. The comparison shows that both the angular distribution of the photoelectrons and the angular distribution of the Auger electrons of equal energy in the molecular frame are primarily defined by the Young interference. The experimental data for the angular resolved K-shell Auger electrons as a function of the kinetic-energy release (KER) obtained earlier [Phys. Rev. A 81, 043426 (2010)] have been renormalized in order to visualize the angular variation in the regions of low Auger-electron intensities. That renormalized data are compared with the corresponding theoretical results. From the known behavior of the potential energy curves, the connection between the KER and the internuclear distance can be established. Since the Young interference pattern is sensitive to the internuclear distance in the molecule, from the measured KER dependence of the Young interference pattern one can trace the behavior of the Auger-electron angular distribution for different molecular terms as a function of internuclear distance. The results of that analysis are in a good agreement with the corresponding theoretical predictions.},
doi = {10.1103/PHYSREVA.82.023420},
url = {https://www.osti.gov/biblio/21448537}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 82,
place = {United States},
year = {Sun Aug 15 00:00:00 EDT 2010},
month = {Sun Aug 15 00:00:00 EDT 2010}
}