Abstract
AbstractAntimony doped potassium halide crystals give one optical absorption band at 205 nm in KCl, 215 nm in KBr, and 243 nm in KI at RT. These bands are ascribed to the divalent state of antimony. Correlated EPR studies show that the paramagnetic antimony (Sb2+) state is associated with a vacancy in the second neighbour position. Experiments have also been performed on the conductivity and dielectric loss. The impurity–vacancy binding energy is found to be ≈ 0.30 eV in these crystals.
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