Abstract
The electron paramagnetic resonance (EPR) spectra of Eu2+ impurity centers in SrMoO4 crystals have been studied in the temperature range of 1.8, 100–300 K. A hyperfine structure has been simulated for 151,153Eu of different EPR transitions observed experimentally at different temperatures and external magnetic field orientations. A unique set of all parameters of the spin Hamiltonian for the known sign of the hyperfine interaction parameters Ai has been determined. It has been found that the diagonal parameters |bn0| of the spin Hamiltonian decrease with increasing temperature; however, the parameter b44 increases. The results of the study have demonstrated that |b20(T)/P20(T)| ∼ const for 151,153Eu in this single crystal.
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