Specific Mass Shift in Gd I and Dy I

Wei Guo Jin, Takashi Wakui, Toshiaki Endo, Haruko Uematsu, Tatsuya Minowa, Hidetsugu Katsuragawa

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    High-resolution diode-laser spectroscopy has been performed on atomic beams of natural Gd and Dy. Isotope shifts of the even-mass isotopes have been measured for two transitions in Gd I and one transition in Dy I. Specific mass shifts, as well as field shifts, have been derived for transitions of 4f75d6s2-4f76s26p in Gd I, and 4f106s2-4f95d6s2 in Dy I: the specific mass shift is much larger than the normal mass shift. It has been found that the specific mass shift of the 4f106s2 4f95d6s2 transition in Dy I is about one order of magnitude larger than that of the 4f75d6s2-4f76s26p transition in Gd I. This shows that the specific mass shift, related to the correlation effect between electrons, strongly depends on the orbital angular momentum of electrons.

    Original languageEnglish
    Pages (from-to)2316-2320
    Number of pages5
    Journaljournal of the physical society of japan
    Issue number8
    Publication statusPublished - 2001 Aug 1


    • High-resolution laser spectroscopy
    • Isotope shift
    • Specific mass shift

    ASJC Scopus subject areas

    • Physics and Astronomy(all)


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