Absorption Spectra, Zeeman Effects, and Magnetic Properties of Neodymium Salts

Abstract

The absorption spectra of nine neodymium salts were obtained in single crystals at liquid helium temperature and high dispersion. The Zeeman effect of the lines was observed in a field of about 37 000 gauss with different orientations of the crystals, so that the magnetic splitting of the ground and excited states could be measured. This provides valuable clues for the interpretation of the spectra and quantitative data for the dirivation of the crystal field. The results are related to those obtained in paramagnetic resonance measurements.