Thermally Stimulated Depolarization Current in Heterogeneous Structures. The Dielectric Matrix with Dielectric Spheres |
| J. Poźniak Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 937, 50-950 Wrocław, Poland |
| Received: March 24, 1992 |
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| Theoretical analysis of the thermally stimulated depolarization current in heterogeneous structure is performed. Two systems are considered: (i) a single dielectric sphere in dielectric matrix and (ii) a continuous dielectric medium containing sparsely distributed dielectric spheres (Wagner-Voigt model of heterogeneous dielectric. The existence of the interfacial charge is taken into account. The equations are found which describe the dependence of the thermally stimulated depolarization current density on the polarization conditions and on the electrical properties of the both materials. |
| DOI: 10.12693/APhysPolA.81.589 PACS numbers: 77.30.+d |