Fluorescent Spectra ofSm2+in KCl. II. Site-Symmetry Identification of Prominent Lines in theF17andF27Regions by the Second-Order Zeeman Effect, Including Polarization, Selection Rules, and Intensities

In a recent publication, Fong and Bellows reported results on high-magnetic-field studies of lines in the low-$J$-value regions of the fluorescent spectrum of KCl: ${\mathrm{Sm}}^{2+}$ and made site-symmetry assignments accordingly. The authors dispute their methods, data, and identifications on both theoretical and experimental grounds. The authors show that the results of the magnetic field experiments, including both intensity and polarization data as well as splitting, can be interpreted by assigning the prominent lines in these regions as originating from a ${\mathrm{Sm}}^{2+}$ ion in a $C_{2v}$ symmetry site. This is in accord with the earlier work of Bron and Heller.