Electronic Properties of Semiconductors at Liquid Helium Temperatures

摘要

The research effort was devoted to the three least studied and least understood transport phenomena in semiconductors at low temperatures which involve the interaction of impurities. These are: (a) impurity conduction, (b) the transition from nonmetallic to the metallic state, and (c) the so-called metallic state of degenerate semiconductors. This work tries to illuminate the detailed physical phenomena which are so important for the increasing number of low temperature solid state devices such as tunnel diodes and junction lasers.