Abstract
Glasses with composition xBi2O3 ·(0.30 - x)BaO · 0.70B2O3 have been prepared in the range (0.00 ≤ x ≤ 0.15) containing 2.0 mol% of V2O5. Electron paramagnetic resonance (EPR), optical transmission and absorption spectra and DC conductivity of these glasses have been studied. The spin Hamiltonian parameters (SHP) of VO2+ ions, dipolar hyperfine coupling parameter P, Fermi contact interaction parameter K, and molecular orbital coefficients (α2 and γ2) have been calculated. The SHP arc related with the theoretical optical basicity. Ath. The position of the absorption edge and the values of the optical band gap have also been reported. The effect of addition of Bi2O3 on the DC conductivity has also been studied.
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