Polarisation of CdF₂by blocking electrodes. II. The effect of passing currents

Abstract

For pt.I see J. Phys. C, vol.14, p.4357, (1981). Thermally stimulated depolarisation (TSD) currents and charging and discharging currents at room temperature were obtained with graphite-contacted CdF2. The results and scrutiny of published TSD data show that, besides the known impurity-complex and point defect space-charge polarisation, the currents are caused by charge carriers trapped at Cd colloids segregated below the contact surface and by the electrochemical potential which Cd and accumulation fluorine entail.