Spin-Hamiltonian parameters and defect structures for two tetragonal Gd3+ centers in Gd3+-dpoed Tl2ZnF4 crystal

Seven spin-Hamiltonian parameters of two tetragonal Gd3+ centers, A and B, in Tl2ZnF4 crystals are studied concerning their defect models from the diagonalization method based on the one-electron crystal-field mechanism. The defect models of both Gd3+ centers are confirmed and their defect structural data are obtained from the studies.