Vertical transport and domain formation in multiple quantum wells
Andreas Wacker
Abstract
In this book article effects related to the vertical transport in weakly coupled multiple quantum wells are reviewed. A self-contained microscopical model for the calculation of the well-to-well currents without any fittings parameters is presented. The model exhibits the well-known peaks in the current-field relation in quantitative agreement with experiments. This local current-field relation is used as an input for the calculation of the transport in the extended structure consisting of many periods. Here both the formation of stationary field domains as well as self-sustained current oscillations are found in good agreement with experimental data. The underlying physics of these nonlinear phenomena is discussed in detail.
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