Electronic and Ionic Compensation

Significant changes in electronic properties of a solid can result from composition variation. The examples chosen to illustrate this will mainly be drawn from oxides as these have been studied in most detail. In this chapter, pure (single-phase) solids will be described—intrinsic conductivity—while in the following chapter impurities and doping—that is, extrinsic conductivity—will be considered. Note that the principles described below apply equally well to doped crystals—the division into two chapters is a matter of convenience. 

Defects in Solids, by Richard J. D. Tilley Copyright 2008 John Wiley Sons, Inc. 

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