Explanation

Conductivity achieved by ions as charge carriers. There are Schottky and Frenkel point defects in ionic crystal, namely thermal equilibrium vacancy and interstitial atoms (ions). Their movement (transport) causes ion conductivity. The Schottky defect is dominant in the alkali halide crystal, while the frenkel defect is dominant in the silver halide crystal. Its conductivity mechanism is positive ion vacancy movement and interstitial atom (positive ion) movement, respectively.

Classification