Chemistry Letters, Vol.30, No.2, 156-157, 2001
Electron paramagnetic resonance study of positive-hole pairs on oxide ions in lithium bismuthate glass
The electron paramagnetic resonance signals attributed to the triplet state of the positive-hole pairs on oxide ions are observed in (100-x) Bi2O3. xLi(2)O glass (x = 25, 30, 35 mol%). So far as we know, this is the first experimental observation of the triplet oxygen hole center in oxide glasses.