The Electrical Resistivities of NaNO₂and KNO₃Crystals

Abstract

The d c electrical resistivities of NaNO 2 and KNO 3 crystals were measured by the potentiometer method in the temperature range covering their transition points. The obtained results were found to obey the conventional exponential law and the activation energies in both phases were calculated. It was observed that at the transition point the electrical resistivity shows a steep jump, which is about two∼six times in NaNO 2 and about one hundred times in KNO 3 . A little discussion was made about this phenomenon in connection with the appearance of some disordering in the crystal structure.