Doped semiconductors: Role of disorder

Lightly Doped Semiconductors......Page 6
Shallow Impurities......Page 8
Narrow bands and Mott transition......Page 16
Anderson transition......Page 17
Two-state model......Page 18
Weak localization......Page 21
Weak localization .. magnetic field......Page 24
Aharonov-Bohm effect......Page 26
e-e interaction......Page 27
Scaling theory......Page 29
Impurity band for lightly doped semiconductors.......Page 34
Low degree of compensation......Page 35
High degrees of compensation......Page 39
Specific features of the two-dimensional case......Page 40
Basic experimental facts......Page 44
Derivation......Page 46
Conventional treatment......Page 50
``Liquid flow'' definition......Page 52
Cluster statistics......Page 53
Percolation through a finite lattice......Page 56
Summary......Page 57
Continuous problems......Page 58
Random site problems......Page 61
Random networks.Infinite cluster topology......Page 63
Conductivity of strongly inhomogeneous media......Page 65
The contribution 3 as a function of impurity concentrations......Page 70
Low degree of compensation......Page 71
High degree of compensation......Page 72
Variable range hopping......Page 73
Coulomb gap in the density of states......Page 74
AC conductance due to localized states......Page 78
Heavily Doped Semiconductors......Page 86
Interband light absorption......Page 88