Abstract
This paper reports a theoretical calculation of spin-Hamiltonian parameters ( g factors g //, g ⊥ and hyperfine structure constants 147 A //, 147 A ⊥, 149 A //, 149 A ⊥) for 147Sm 3+ and 149Sm 3+ isotopes in the trigonal La 3+ site of La 2Mg 3(NO 3) 12·24H 2O crystal from a diagonalization (of energy matrix) method. In the method, the Hamiltonian concerning the energy matrix includes the Zeeman and hyperfine interaction terms and so there is no perturbation calculation in it. The crystal-field parameters in the energy matrix are calculated using the superposition model, in which the structural data of 12-fold coordinated site rather than those of the incorrect 6-fold coordinated site given in the previous paper are applied. The calculated results are in reasonable agreement with the experimental results. The results are discussed.
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