Abstract
Single quantum wells (SQW) and superlattices of mercury-iron selenide (HgSe:Fe) have been grown by molecular beam epitaxy (MBE) and characterized by in-situ high-energy electron diffraction (RHEED) and magneto spectroscopy investigations. The influence of the structural parameters of the ZnTe buffer layer on the properties of the HgSe:Fe microstructures has been investigated by RHEED-mosaic structure analysis. The onset of strain relaxation at the critical thickness has been determined by intensity-profile analysis of different reflexes in the RHEED pattern. These results are compared with high resolution X-ray measurements (HRXRD) of the lattice relaxation of the HgSe layer. Different types of HgSe:Fe HgSe quantum well structures and superlattices have been characterized by magneto transport investigations. The clear resolved plateau structure of the Hall voltage (Quantum Hall Effect) indicates the existence of a Q2D electron gas in the layers which is also corroborated by the cosine dependence of the peak shift of the Shubnikov de Haas (SdH)-oscillations in tilted magnetic fields.
Published Version
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