Specific Mass Shift in Gd I and Dy I.
Specific Mass Shift in Gd I and Dy I.
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Gd I 和 Dy I 的比质量变化。
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
H. Katsuragawa
中科院分区:
文献类型:
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作者:
W. Jin;T. Wakui;Toshiaki Endo;H. Uematsu;T. Minowa;H. Katsuragawa
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 4 f 7 5 d 6 s 2 –4 f 7 6 s 2 6 p in Gd I, and 4 f 10 6 s 2 –4 f 9 5 d 6 s 2 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 4 f 10 6 s 2 –4 f 9 5 d 6 s 2 transition in Dy I is about one order of magnitude larger than that of the 4 f 7 5 d 6 s 2 –4 f 7 6 s 2 6 p 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.