Electron-Electron Interaction In Disordered Conductors

Аннотация

The theory of transport phenomena based on the classical equation assumes that between scattering events the electron moves along a classical trajectory. This is valid, however, only provided interference of scattering from different centers can be neglected. The criterion for the validity of such an approach is the smallness of the electron wavelength Л compared to the mean free path /, as pointed out by Ioffe and Regel (1960), Mott (1961), and Mott and Davis (1971). If this condition is not satisfied, then, as shown by Anderson (1958), the electron states are localized, the zero temperature conductivity being zero.