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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/38977


    Title: Spin-mixed doubly excited resonances in Ca and Sr spectra
    Authors: Chen,JH;Fang,TK;Chu,CC;Yih,TS;Chang,TN
    Contributors: 物理研究所
    Keywords: ULTRA-VIOLET EXTENSIONS;ABSORPTION SPECTRUM;ALKALINE EARTHS;ARC SPECTRA;2-ELECTRON EXCITATIONS;ATOMIC CALCIUM;CROSS-SECTIONS;STRONTIUM;THRESHOLD;VAPOUR
    Date: 2009
    Issue Date: 2010-07-08 14:01:03 (UTC+8)
    Publisher: 中央大學
    Abstract: We present a joint theoretical and experimental investigation to demonstrate explicitly how the combined spin-dependent interaction and the configuration interaction may affect the mixing of different spin states along various doubly excited autoionization series for Ca and Sr as energy increases across several ionization thresholds. In particular, our study has identified the inversion of energy levels between members of a number of multiplets, i.e., in contrast to the Hund's rules, due to the presence of perturber from other overlapping resonance series. We are also able to demonstrate the beginning of the breakdown of the LS coupling for resonance series corresponding to electron configurations with higher orbital angular momenta and those above the third ionization threshold.
    Relation: PHYSICAL REVIEW A
    Appears in Collections:[物理研究所] 期刊論文

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