Abstract:
Photoreflectance spectra of selectively doped GaAs/AlGaAs heterostructures are studied under the conditions of direct current flow along the structure layers. Using a model developed for the spectra, variations of the internal transverse electric fields are calculated for longitudinal current flow. It is proved experimentally that even a weak heating of electrons in such structures leads to a spatial redistribution of electrons in the direction transverse to the heterostructure layers.
Citation:
E. I. Lonskaya, O. A. Ryabushkin, “Transverse charge-carrier transfer in selectively doped GaAs/AlGaAs semiconductor heterostructures with longitudinal current flow”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:10 (2005), 747–751; JETP Letters, 82:10 (2005), 664–668