Abstract
Five line groups in the absorption spectrum of samarium magnesium nitrate were studied at low temperatures. From the polarization of the lines and with the help of the Zeeman effect the crystal quantum numbers mu , nu -bar of the crystal-field components, the angular-momentum quantum number J and the g factor of the terms, some crystal-field matrix elements, and a part of the eigenfunctions in the crystal were obtained. The Russell-Saunders-terms, arising on the basis of the Zeeman effect, were discussed and red with theory. With the crystal-field components of the ground term 6H5/2 the specific magnetic heat was calData are presented on the mass spectra of secondary positive and negative ions appearing in Ne+, Ar+, and Kr+ bombardiment of molybdenum. The relation of the number secondary ions to the primary energies at 5 to 40 kev and to the target temperature was investigated. The emission restoration time after degasification in vacuum was determined for all secondary ions. Variations in the secondary emission mass spectra appearing due to the action hydrogen and D2O vapor additions were investigated.
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