MULTI-ACTIVATION ENERGY DENSITY DISTRIBUTION AND THERMALLY STIMULATED CURRENT OF ELECTRIC DIPOLES IN CONDENSED MATTER

The physical meaning of the transcendental function in traditional thermally stimulated current (TSC) equation of electric dipoles with a single activation energy was first analyzed. Then a simple formula obtained directly from the tested TSC for calculating activation energy parameter, etc., was deduced. Numerical calculation showed that the exact TSC agrees with the approximated one very well. Further analysis found a limiting condition for the discrete to continuous activation energy density distribution and a criterion for discriminating the contributions to TSC by depolarization of the dipoles with multi-activation energy from those with a single one.