Abstract
Electron Paramagnetic Resonance (EPR) spectra of K 2SO 4Na 2SO 4ZnSO 4 glasses containing 3 mol.% of vanadium sulphate have been studied. Spin-Hamiltonian parameters ( g ∥, g ⊥, A ∥, A ⊥), the dipolar hyperfine coupling parameter ( P), the Fermi contact interaction parameter ( K) and the tetragonality of the V 4+ site ( Δg ∥ Δg ⊥ ) have been calculated. The optical absorption spectra of VO 2+ ions doped these glasses show three bands. By correlating the EPR and optical spectral data, the molecular orbital parameters have been evaluated. Results agree with similar studies made earlier.
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