Observation of dynamics of hydrogen bonds in TGS crystals by means of   measurements of pyroelectric currents induced by changes of temperature
  The study of pyroelectric response of monocrystalline TGS cubic specimens to changes of temperature induced by linear and pulse heating of three mutually perpendicular pairs of cube sides demonstrated a complicated structure of signals. We attribute their forms to the activation of various hydrogen bonds between glycine I, II, III molecules. In the case of pulse heating the pyroelectric signal is observed also in the paraelectric phase. The applied measurement method is relatively simple but precise and can be realized in most of dielectric measurements laboratories. 
M. Trybus, T. Paszkiewicz and B. Wos
cond-mat.mtrl-sci