1971
DOI: 10.1002/pssb.2220480224
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Anomalous polarisation current in alkali halide crystals

Abstract: In low temperature dc polarisation of alkali halide crystals cnrrcnt somctimes flows in the opposite direction to that normally observed. This anomalous current, which is small and not due to electret effect, appears to be a flow of conduction charge in surface layers, observed only when the processes causing conventional polarisation are minimal. The crystal surface acts as though it contains a negative capacitance that stores a layer of anomalous charge, whilst normal charge tends to form peripherally around… Show more

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Cited by 2 publications
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“…For periods (C) and (D) the observed current can be explained by the existence of two current components of opposite sign (cf. [14]). At the beginning of period (C), after only 17 min of discharge, the crystal was not yet completely discharged.…”
Section: Currents During Charging and Discharging At Rt After A Rever...mentioning
confidence: 99%
“…For periods (C) and (D) the observed current can be explained by the existence of two current components of opposite sign (cf. [14]). At the beginning of period (C), after only 17 min of discharge, the crystal was not yet completely discharged.…”
Section: Currents During Charging and Discharging At Rt After A Rever...mentioning
confidence: 99%