Simple macroscopic model of pyroelectric phenomenon in TGS single crystals in ferroelectric phase

A simple mathematical model of pyroelectric phenomena, for ideal ferroelectrics, is presented. Material constants for triglycine sulphate (TGS) are used to verify the model. The results of simulations were compared with the temperature characteristics of the pyroelectric coefficient measured for a TGS ferroelectric sample. Single crystal growth and preparation of samples and experimental procedure are also presented. The relatively good conformity of the model calculations with the measurements allow us to expect further useful application of the model in future work on ferroelectric single crystals.