K -shell diagram and hypersatellite spectra of 4d transition elements

R. Diamant, S. Huotari, K. Hämäläinen, R. Sharon, C. C. Kao, V. Honkimäki, T. Buslaps, M. Deutsch

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.
    Original languageEnglish
    JournalPhysical Review A (Atomic, Molecular and Optical Physics)
    Volume79
    Issue number6
    Pages (from-to)062512
    Number of pages12
    ISSN1050-2947
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Fields of Science

    • 114 Physical sciences

    Cite this

    Diamant, R. ; Huotari, S. ; Hämäläinen, K. ; Sharon, R. ; Kao, C. C. ; Honkimäki, V. ; Buslaps, T. ; Deutsch, M. / K -shell diagram and hypersatellite spectra of 4d transition elements. In: Physical Review A (Atomic, Molecular and Optical Physics). 2009 ; Vol. 79, No. 6. pp. 062512.
    @article{48196d353f6449cea41fbf6e6d2aaf2c,
    title = "K -shell diagram and hypersatellite spectra of 4d transition elements",
    abstract = "The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.",
    keywords = "114 Physical sciences",
    author = "R. Diamant and S. Huotari and K. H{\"a}m{\"a}l{\"a}inen and R. Sharon and Kao, {C. C.} and V. Honkim{\"a}ki and T. Buslaps and M. Deutsch",
    year = "2009",
    doi = "10.1103/PhysRevA.79.062512",
    language = "English",
    volume = "79",
    pages = "062512",
    journal = "Physical Review A (Atomic, Molecular and Optical Physics)",
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    K -shell diagram and hypersatellite spectra of 4d transition elements. / Diamant, R.; Huotari, S.; Hämäläinen, K.; Sharon, R.; Kao, C. C.; Honkimäki, V.; Buslaps, T.; Deutsch, M.

    In: Physical Review A (Atomic, Molecular and Optical Physics), Vol. 79, No. 6, 2009, p. 062512.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - K -shell diagram and hypersatellite spectra of 4d transition elements

    AU - Diamant, R.

    AU - Huotari, S.

    AU - Hämäläinen, K.

    AU - Sharon, R.

    AU - Kao, C. C.

    AU - Honkimäki, V.

    AU - Buslaps, T.

    AU - Deutsch, M.

    PY - 2009

    Y1 - 2009

    N2 - The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.

    AB - The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.

    KW - 114 Physical sciences

    U2 - 10.1103/PhysRevA.79.062512

    DO - 10.1103/PhysRevA.79.062512

    M3 - Article

    VL - 79

    SP - 062512

    JO - Physical Review A (Atomic, Molecular and Optical Physics)

    JF - Physical Review A (Atomic, Molecular and Optical Physics)

    SN - 1050-2947

    IS - 6

    ER -