Abstract
The relationship between the g-shift and the local structure of the Ce3+ paramagnetic center with axial symmetry were investigated for four BaWO4 single crystals doped with Ce and codoped with Na. Based on g-shift the displacements of Ce3+ ions are determined. The g-shift method yields displacements of impurity ions in good agreement with the superposition model (SPM) and the perturbation methods (PM) predictions. The structural analysis of the paramagnetic ions and its surrounding in the BaWO4 unit cell was also conducted.
Highlights
In recent years, ABO4 compounds have attracted a great deal of interest due to their applications.The wolframite and scheelite structures are common structure types for ABO4 compounds [1].Tungstate materials like BaWO4, PbWO4, CaWO4, or SrWO4 are very interesting because of their applications as laser host material or scintillators
K,q on information from spin—Hamiltonian parameters calculated the basis of ERP measurements: (a) superposition model (SPM) [18]qand/or (b) perturbation methods (PM) up to second-order
The following BaWO4 single crystals were investigated by EPR in previous papers: (a) BaWO4: 0.5% at
Summary
ABO4 compounds have attracted a great deal of interest due to their applications. Doped barium tungstate single crystals with alkali earth metals (Me) or rare-earth ions (Re) display the greater possibility of further applications as luminescence and solid-state laser materials. Doped barium tungstate single crystals with alkali earth metals (Me) or rare-earth ions (Re) greatly increases the further possibility of application as luminescence and solid-state laser materials. Å, respectively, for two tetrahedra forming a dodecahedron investigation of BaWO4 single crystals doped with Ce and codoped with Na [8,9]. A paper, few suggested a method to extract structural information fromparameters the g-shift parameters [18,20].[8,9] In this articles about investigations of doped and codoped with different elements were found. Theyoffocused on optical and results be analysed on the basis crystallographic data andXRD othermeasurements publications. with detailed structural analysis, without EPR data and analysis [14]
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