Impurity bands and sequential resonant tunneling in the presence of terahertz fields
A theoretical and experimental study of transport in a low doped multiple quantum well structure shows that impurity bands are essential in understanding the electronic transport both with and without terahertz irradiation. A full self-contained model, which involves only the nominal parameters of the sample, agrees quantitatively with a wide range of experiments.
cond-mat.mes-hall↗