The polarization efficiency of the thermal sampling technique in thermally stimulated depolarization current measurements

In this work, the polarization efficiency is examined for the technique of thermal sampling used in thermally stimulated depolarization current measurements, for the case where a very narrow temperature polarization window is used at the polarization temperature of Tp. It is found that this has appreciable values only along a straight line in the E−lnτ0 plane. The selectivity of the method is expressed by the widths ΔE≈3kTp and Δlnτ0≈3 of the distributions of the E and lnτ0 values of the dipoles polarized by thermal sampling. A possible interpretation is also offered of the phenomenon known as compensation law, based on the selectivity characteristics of the thermal sampling technique examined in this work.