材料期刊网

The spin-Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants (161)A(parallel to), (161)A(perpendicular to), (163)A(parallel to), (163)A(perpendicular to)) for (161)Dy(3+) and (163)Dy(3+) isotopes in the trigonal 12-fold coordinated La(3+) site of La(2)Mg(3)(NO(3))(12)center dot 24H(2)O crystal are calculated from a diagonalization (of energy matrix) method. In the method, the Zeeman and hyperfine interaction terms are added to the conventional Hamiltonian used in the studies of crystal-field energy levels, and a 66x66 energy matrix concerning the ground multiplet (6)H(15/2) and the first to fifth excited multiplets (6)H(13/2), (6)H(11/2), (6)H(9/2), (6)H(7/2) and (6)H(5/2) are applied. The calculated results are discussed. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim