Abstract
A comparison of the induction current and the emission current during the pyroelectric effect in vacuum conditions with periodic variation in the temperature of a single crystal of lithium tantalate is presented. An increase in the variation frequency leads to suppression of the emission current, which does not allow one to observe the effect of the optimal frequency with the maximum amplitude, as for the induction current. The conformity of both current forms is shown, except for the region of 2 mHz or less, where an additional current wave is observed. It is established that this additional wave is initiated above a certain threshold of potential difference and leads to its stabilization.
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