A. Wannstrom et al., HIGH-RESOLUTION LASER SPECTROSCOPY ON YTTRIUM IONS IN A SPUTTERED VAPOR, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 29(1), 1994, pp. 39-44
Magnetic hyperfine interaction constants (A factors) have been determi
ned for nine levels in the 4d5s and 4d5p configurations of the Y+ ion
by Doppler-free saturation spectroscopy and level crossing spectroscop
y in a sputtered vapour.