ELECTRICAL CONDUCTIVITY IN ZINC-BORATE GLASSES CONTAINING TRANSITION METAL OXIDES.

Oxide glasses doped with paramagnetic transition metal oxides behave like semiconducting glasses. As part of a programme to study the effect of doping transition metal ions on the electrical conductivity in inorganic glasses, we have undertaken a study of the D. C. electrical conductivity in zinc-borate glasses doped with Fe//2O//3,V//2O//5 and Fe//2O//3 plus V//2O//5 mixed together and we report in this communication the results obtained in the systems