ABSTRACT
The theoretical background is now applied to develop the Sommerfeld theory of metals, the Fermi-Dirac statistics, the band theory, and the Brillouin zone theory in order to understand the physical properties of solids. These are given only to the extent necessary for this book; they are not comprehensive, since they are not intended to be applied in detail to a wide range of the properties of solids. They do, however, provide a reasonable, elementary basis for understanding the properties of thermoelectric materials as well as a foundation for further study.
