Abstract
The application of high magnetic fields has proven to be a very fruitful technique for studying the fundamental properties of semiconductors. The effect of a field is to quantize the band structure, to split spin degenerate levels, and to quantize the orbital motion. In this paper we will briefly describe three different phenomena, which are observable only because of this threefold quantization. In the next chapter we will study the luminescence in GaAs/GaA1As quantum well under high excitation in magnetic fields. The quantization of energy by the field serves to create richer spectra and to obtain more detailed information about the many-particle states. In chapter III we will study relaxation between spin split Landau levels in similar samples, and we will show that the discrete nature of spin split levels in two-dimensional systems leads to a bottleneck in the energy relaxation. Finally in chapter IV we show results of theoretical calculations of the energy levels in quasi-periodic Fibonacci superlattices, and show that the orbital quantization which can be varied by the field, can lead to self-similarity in the energy dispersion.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Maan, J.C., Potemski, M., Wang, Y.Y. (1989). High Magnetic Fields as a Tool to Study the Optical Properties of Quantum Wells and Superlattices. In: Landwehr, G. (eds) High Magnetic Fields in Semiconductor Physics II. Springer Series in Solid-State Sciences, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83810-1_39
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DOI: https://doi.org/10.1007/978-3-642-83810-1_39
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