Observation of dynamics of hydrogen bonds in TGS crystals by means of measurements of pyroelectric currents induced by changes of temperature

摘要

The study of pyroelectric response of monocrystalline TGS cubic specimens tochanges of temperature induced by linear and pulse heating of three mutuallyperpendicular pairs of cube sides demonstrated a complicated structure ofsignals. We attribute their forms to the activation of various hydrogen bondsbetween glycine I, II, III molecules. In the case of pulse heating thepyroelectric signal is observed also in the paraelectric phase. The appliedmeasurement method is relatively simple but precise and can be realized in mostof dielectric measurements laboratories.