The electrical properties of cadmium-zinc-phosphate glasses at higher electric fields

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Abstract
The cadmium-zinc-phosphate glasses previously described by the authors are further examined in relation to their electrical conduction properties at higheried fields above 2.5× 104 V cm−1 at room temperature. Following the assumptions of Lacharme and Isard, the mechanism of electrical conduction seems to be due to the Poole-Frenkel effect in these particular glasses. The values of relative dielectric constants evaluated from the slopes of log I versus V1/2 curves are close to the static dielectric constants.