Dielectric and pyroelectric properties of rapid growth TGS crystals

Abstract

This paper reports the dielectric constant e, spontaneous polarization strength P₈ and pyroelectric coefficient of TGS crystals grown at rates of 2 mm/day and 7 mm/day respectively at different temperatures. The results indicate that the e, P, and A, of the crystals grown at higher rates are larger than those of the crystals grown at normal rates. The maximum value of dielectric constant of the former is smaller than that of the latter near the curie point. The figures of merit of the rapid growth crystals are almost the same as those of the crystals grown at normal rates. Finally, the experimental results are discussed based on the influences of crystal defects on the crystal properties.