Zero-field splitting of ~4T_2 term for 3d~3 ions in tetragonal symmetry

摘要

By taking into account slight interactions, i.e. spin-spin, spin-other-orbit and orbit-orbit interactions, in addition to spin-orbit interaction, the zero-field splitting of ~4T_2 state for 3d~3 ions at tetragonal symmetry has been studied. The convergence of the approximation perturbation formula of ~4T_2 state for 3d~3 ions at tetragonal symmetry has been investigated, and the contributions to zero-field splitting arising from magnetic interaction and tetragonal crystal field are discussed. It is found that there exists combined mechanism between magnetic interactions and tetragonal crystal field.