LAUSR

The space charge polarization/depolarization is considered, and to relate the geometrical arrangement of constitutive phases to the dielectric response, three space charge dielectric constants, viz., trapped space charge dielectric constant εt, drift space charge dielectric constantεd and dielectric constant ε are modeled. It is observed that the order of εt is same for AgI and 0.9[0.75AgI:0.25AgCl]:0.1SiO2 nanocomposite in β− and α−phases. In β− phase, εd and ε are 10 times larger and 10 times smaller in the second system of respective β− and α−phases. In β− phase, the ionic concentration provides the main contribution to the dielectric response of both systems, and in α− phase, the ionic mobility has the main contribution to the dielectric nature.