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The series of V-doped glasses with Li2O-2B2O3 (Li2B4O7), 1/2(Li2O-K2O-4B2O3), (LiKB4O7), CaO-2B2O3 (CaB4O7) and 1/2(Li2O-2CaO-B2O3) (LiCaBO3) composition containing 0.5 and 1.0 mol. % V2O5 oxide were obtained by standard glass technology. The electron paramagnetic resonance (EPR) and optical absorption spectra of the obtained glasses were investigated at T = 300 K. The spin Hamiltonian parameters...
Lithium and potassium–lithium tetraborate glasses doped with Cu (Li 2 B 4 O 7 :Cu and KLiB 4 O 7 :Cu) of high optical quality were obtained from polycrystalline compounds by fast cooling of the corresponding melt. Cu impurity was added to the Li 2 B 4 O 7 and KLiB 4 O 7 compounds in the form of a CuO oxide in the amounts...
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