A GENERALIZED VIEW OF THE CORRELATION FACTOR IN SOLID-STATE DIFFUSION

The correlation factor is commonly used to determine the mechanism of diffusion in solids. Although originally thought to be associated only with tracer diffusion, the concept of the correlation factor has broa dened considerably over the last couple of decades. In light of these developments, it is important to generalize the concept. This article attempts to present a simple picture of an integrated view of the corr elation factor in a way accessible to a wider audience. Some areas whe re the generalized correlation factor plays important roles are also h ighlighted.