科研之友
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摘要
The nine spin-Hamiltonian (SH) parameters (g-factors g(i) and hyperfine structure constants (147)A(i) and (149)A(i) for Sm-147(3+) and Sm-149(3+) isotopes, where i = x, y, z) for the Samarium(III) ion in mono-clinic potassium yttrium tungstate [KY(WO4)2] crystal are calculated within the rhombic symmetry approximation from a diagonalization of energy matrix method. Differing from the conventional diagonalization method used in the calculation of crystal-field levels, in the present method, we attach the Zeeman (or magnetic) and hyperfine interaction terms to the conventional Hamiltonian and construct the 66 x 66 energy matrix for 4f(5) ions in rhombic crystal field and under an external magnetic field by considering all the ground-term multiplets 4H(j). The calculated results are in reasonable agreement with the experimental values.
