Abstract
The electrical conductivity of glass has long been known to be a function of temperature and composition, this fact being first established empirically by Foussereau in 1882. The temperature dependence of the resistivity would seem, however, to follow different laws at high and at low temperatures. Using the rate‐process theory, an equation is developed giving the dependence of the resistivity versus temperature. It is shown that at high and low temperatures the equation is reducible to the known empirical forms. It is also shown that glass may be nonohmic in character at low temperatures, as reported by Poole. Poole's equation for the dependence of the resistivity on field strength furthermore is shown to be a direct consequence of the theory.
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