Hyperfine-Structure Separations and Magnetic Moments of Gold-194, 195, and 196

Abstract

The hyperfine-structure separations in the $^{2}S_{\frac{1}{2}}$ electronic ground state of 39-h ${\mathrm{Au}}^{194}$, 185-day ${\mathrm{Au}}^{195}$, and 6.2-day ${\mathrm{Au}}^{196}$ have been measured by the atomic-beam magnetic-resonance method. From these measurements combined with the known constants of ${\mathrm{Au}}^{197}$, the corresponding nuclear magnetic-dipole moments were calculated by means of the Fermi-Segr\`e formula. A 5% error is assigned in these moments to include a possible hyperfine-structure anomaly correction. The results are