The possible ways of using some approximation in the theory of thermally stimulated currents in dielectrics

The analysis of the thermally stimulated short-circuit currents in a monoelectret with nonblocking electrodes shows that for practically relevant cases it is possible to use the drift approximation as well as the approximation of uniform space charge carriers distribution and the approximation of time distribution and the approximation of time of flight. In electroneutral dielectric (with space-charge polarization) the external short-circuit current equals to the average diffusion current in a dielectric. However, as it is shown here, the drift current in local regions of a dielectric can influence the kinetics of the thermally stimulated current and the process of charge carriers recombination as well