Abstract

Two recent determinations of the ⁹¹Zr hyperfine structure in the z⁵F₁ level of Zr I are found to differ by a factor of almost 5. A reexamination of the data confirms the results obtained in our previous investigation: A(z⁵F₁) = 273.6 ± 0.3 MHz, B(z⁵F₁) = 5.9 ± 0.6 MHz, and hence δν = −99.6 ± 1.0 MHz for the ⁹¹Zr–⁹⁰Zr isotope shift in the 595.5-nm (a³F₂–z⁵F₁) ground-state transition.

© 1992 Optical Society of America

Isotopic shift of the ⁵F1°←³F₂ transition in ⁹¹Zr

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