Khα1,2 hypersatellites of 3d transition metals and their photoexcitation energy dependence

R. Diamant, S. Huotari, K. Hämäläinen, R. Sharon, C. C. Kao, M. Deutsch

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    Kuvaus

    Hollow atoms in which the K shell is empty while the outer shells are populated allow studying a variety of important and unusual properties of atoms. The diagram x-ray emission lines of such atoms, the K-h alpha(1,2) hypersatellites (HSs), were measured for the 3d transition metals, Z=23-30, with a high energy resolution using photoexcitation by monochromatized synchrotron radiation. Good agreement with ab initio relativistic multiconfigurational Dirac-Fock calculations was found. The measured HS intensity variation with the excitation energy yields accurate values for the excitation thresholds, excludes contributions from shake-up processes, and indicates domination near threshold of a nonshake process. The Z variation of the HS shifts from the diagram line K alpha(1,2), the K-h alpha(1)-K-h alpha(2) splitting, and the K-h alpha(1)/K-h alpha(2) intensity ratio, derived from the measurements, are also discussed with a particular emphasis on the QED corrections and Breit interaction.
    Alkuperäiskielienglanti
    LehtiPhysical Review A (Atomic, Molecular and Optical Physics)
    Vuosikerta79
    Numero6
    Sivut062511
    Sivumäärä17
    ISSN1050-2947
    DOI - pysyväislinkit
    TilaJulkaistu - 2009
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

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    title = "Khα1,2 hypersatellites of 3d transition metals and their photoexcitation energy dependence",
    abstract = "Hollow atoms in which the K shell is empty while the outer shells are populated allow studying a variety of important and unusual properties of atoms. The diagram x-ray emission lines of such atoms, the K-h alpha(1,2) hypersatellites (HSs), were measured for the 3d transition metals, Z=23-30, with a high energy resolution using photoexcitation by monochromatized synchrotron radiation. Good agreement with ab initio relativistic multiconfigurational Dirac-Fock calculations was found. The measured HS intensity variation with the excitation energy yields accurate values for the excitation thresholds, excludes contributions from shake-up processes, and indicates domination near threshold of a nonshake process. The Z variation of the HS shifts from the diagram line K alpha(1,2), the K-h alpha(1)-K-h alpha(2) splitting, and the K-h alpha(1)/K-h alpha(2) intensity ratio, derived from the measurements, are also discussed with a particular emphasis on the QED corrections and Breit interaction.",
    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 M. Deutsch",
    year = "2009",
    doi = "10.1103/PhysRevA.79.062511",
    language = "English",
    volume = "79",
    pages = "062511",
    journal = "Physical Review A (Atomic, Molecular and Optical Physics)",
    issn = "1050-2947",
    publisher = "American Physical Society",
    number = "6",

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    Khα1,2 hypersatellites of 3d transition metals and their photoexcitation energy dependence. / Diamant, R.; Huotari, S.; Hämäläinen, K.; Sharon, R.; Kao, C. C.; Deutsch, M.

    julkaisussa: Physical Review A (Atomic, Molecular and Optical Physics), Vuosikerta 79, Nro 6, 2009, s. 062511.

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    TY - JOUR

    T1 - Khα1,2 hypersatellites of 3d transition metals and their photoexcitation energy dependence

    AU - Diamant, R.

    AU - Huotari, S.

    AU - Hämäläinen, K.

    AU - Sharon, R.

    AU - Kao, C. C.

    AU - Deutsch, M.

    PY - 2009

    Y1 - 2009

    N2 - Hollow atoms in which the K shell is empty while the outer shells are populated allow studying a variety of important and unusual properties of atoms. The diagram x-ray emission lines of such atoms, the K-h alpha(1,2) hypersatellites (HSs), were measured for the 3d transition metals, Z=23-30, with a high energy resolution using photoexcitation by monochromatized synchrotron radiation. Good agreement with ab initio relativistic multiconfigurational Dirac-Fock calculations was found. The measured HS intensity variation with the excitation energy yields accurate values for the excitation thresholds, excludes contributions from shake-up processes, and indicates domination near threshold of a nonshake process. The Z variation of the HS shifts from the diagram line K alpha(1,2), the K-h alpha(1)-K-h alpha(2) splitting, and the K-h alpha(1)/K-h alpha(2) intensity ratio, derived from the measurements, are also discussed with a particular emphasis on the QED corrections and Breit interaction.

    AB - Hollow atoms in which the K shell is empty while the outer shells are populated allow studying a variety of important and unusual properties of atoms. The diagram x-ray emission lines of such atoms, the K-h alpha(1,2) hypersatellites (HSs), were measured for the 3d transition metals, Z=23-30, with a high energy resolution using photoexcitation by monochromatized synchrotron radiation. Good agreement with ab initio relativistic multiconfigurational Dirac-Fock calculations was found. The measured HS intensity variation with the excitation energy yields accurate values for the excitation thresholds, excludes contributions from shake-up processes, and indicates domination near threshold of a nonshake process. The Z variation of the HS shifts from the diagram line K alpha(1,2), the K-h alpha(1)-K-h alpha(2) splitting, and the K-h alpha(1)/K-h alpha(2) intensity ratio, derived from the measurements, are also discussed with a particular emphasis on the QED corrections and Breit interaction.

    KW - 114 Physical sciences

    U2 - 10.1103/PhysRevA.79.062511

    DO - 10.1103/PhysRevA.79.062511

    M3 - Article

    VL - 79

    SP - 062511

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

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

    SN - 1050-2947

    IS - 6

    ER -