Investigations of the epr parameters for dy3+ center in zrsio4 crystal

Hui-Ning Dong, Deng-Feng Li, Jun Liu, David J. Keeble

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    Abstract

    The electronic paramagnetic resonance g factors g(parallel to), g(perpendicular to) of Dy3+ centers and the hyperfine structure constants A(parallel to) and A(perpendicular to) of Dy-161(3+) and Dy-163(3+) isotopes in ZrSiO4 crystal are theoretically studied from the perturbation formulas of the spin Hamiltonian parameters for a 4f(9) ion in tetragonal symmetry. In these formulas, the contributions to g factors due to the J-mixing among the ground H-6(15/2), the first excited H-6(13/2) and second excited H-6(11/2) states via crystal-field interaction, the admixtures among the states with the same J value via spin-orbit coupling interaction and the interactions between the lowest Kramers doublet Gamma gamma and other 20 Kramers doublets Gamma(X) within the states H-6(J) (J = 15/2, 13/2 and 11/2) via crystal-field and orbital angular momentum interactions are considered. The calculated EPR parameters show reasonable agreement with the observed values. The results are discussed.

    Original languageEnglish
    Pages (from-to)289-296
    Number of pages8
    JournalModern Physics Letters B
    Volume24
    Issue number3
    DOIs
    Publication statusPublished - 30 Jan 2010

    Keywords

    • Electron paramagnetic resonance
    • crystal-field theory
    • Dy3+
    • ZrSiO4
    • YVO4
    • SINGLE-CRYSTALS
    • PARAMAGNETIC-RESONANCE
    • SUPERPOSITION-MODEL
    • YB3+ IONS
    • ZIRCON
    • YVO4

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