Depolarization Thermocurrents in Ice Ih at Low Temperature

P. Pissis 1 , G. Boudouris 1 , J. C. Garson 2  und J. L. Lévêque 2
  • 1 National Technical University, Physics Laboratory A, Zografou Campus, Athens, Greece
  • 2 Laboratoires de Recherche de l’Oréal, Department de Physique, Aulnay-sous-Bois, France

Polycrystalline ice samples frozen from highly purified water have been investigated by means of the depolarization thermo-current (DTC) technique in the temperature range 85-250 K. Three peaks have been observed at temperatures about 125, 165, and 225 K at a heating rate of 3.5 K/min. The measurements confirm most of the results reported by Johari and Jones. The characteristics of the low temperature DTC peak have been examined extensively for different samples, different heating rates and different polarization conditions. This peak has been found to be non-Debye. Its multiplicity has been studied experimentally using the possibilities offered by the DTC method. It may be better represented by a continuous ditribution of relaxation times than by a sum of discrete relaxation processes

Falls das inline PDF nicht korrekt dargestellt ist, können Sie das PDF hier herunterladen.


Zeitschrift + Hefte

A Journal of Physical Sciences: Zeitschrift für Naturforschung A (ZNA) is an international scientific journal which publishes original research papers from all areas of experimental and theoretical physics. In accordance with the name of the journal, which means "Journal for Natural Sciences", manuscripts submitted to ZNA should have a tangible connection to actual physical phenomena.