Abstract
Abstract The electron paramagnetic resonance parameters g factors g ∥ and g ⊥ of Sm 3+ and hyperfine structure parameters A ∥ and A ⊥ of 147 Sm 3+ and 149 Sm 3+ isotopes in La 2 Mg 3 (NO 3 ) 12 ·24H 2 O crystal are calculated from the perturbation formulas of EPR parameters for 4f 5 ion in trigonal symmetry. In these formulas, the J -mixing among the 6 H J ( J = 5/2, 7/2 and 9/2) states via crystal-field interactions, the mixtures among the states with the same J value via spin–orbit coupling interaction, and the interactions between the lowest Kramers doublet Γγ and the same irreducible representations in the other 11 Kramers doublets Γx via crystal-field and orbital angular momentum (or hyperfine structure) interactions are considered. The crystal-field parameters for the studied Sm 3+ centre are obtained from the superposition model. The theoretical calculated results are in reasonable agreement with the experimental values.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.