Hyperfine Structure of the Spectrum of Zr I and the Magnetic Moment of Zr⁹¹

Abstract

The hfs of the spectrum of Zr I was investigated, natural zirconium sample being used; and in some lines the hfs of Zr⁹¹ was observed. The magnetic moment of Zr⁹¹ calculated from the measured splittings in the line λ4687.80 (4d³5s⁵F₅−4d³5p⁵G₆) and other lines is
μ(Zr⁹¹)=−1.3±0.3 nm..