Magneto-Luminescence in GaAs-(GaAl)As Superlattices
During the past few years it has become possible to grow systems consisting of alternate layers of different semiconductors with controlled thicknesses and relatively sharp interfaces. These one-dimensional periodic structures, generally referred to as superlattices, are most extensively studied in the system built with alternate layers of GaAs and (GaAl)As. It has been reported by many authors that due to the quantum size effect excitons have a character different from that in bulk material /l/. The exciton becomes quasi-two dimensional, its binding energy is enhanced, the degeneracy of heavy- and light-hole band is removed, resulting in two exciton systems.
KeywordsMagnetic Field Dependence Alternate Layer Diamagnetic Shift Hole Subbands Electron Subband
Unable to display preview. Download preview PDF.
- 1.R. Dingle, Festkörperprobleme, Vol. XV, (Pergamon Braunschweig 1975) p. 21Google Scholar
- 3.N. Miura Y. Iwasa S. Tarucha and H. Okamoto, Proc 17th Intern. Conf. on the Physics of Semiconductors, San Francisco, 1984, p. 360Google Scholar
- 4.W. Ossau, B. Jäkel, E. Bangert, G. Landwehr and G. Weimann, 2nd Int. Conf. on Modulated Semiconductor Structures, Kyoto 1985,p. 120Google Scholar
- 6.M.C. Smith, A: Petrou, C.H. Perry, J.M. Worlock and R.L. Aggarwal Proc. 17th Intern. Conf. on the Physics of Semiconductors, 1984, p. 547Google Scholar
- 10.E. Bangert and G. Landwehr, Superlattices and Microstructures 1, 1985, p. 363Google Scholar
- 17.L.J. Sham, Proceedings of the Yamada Conf. on Mod. Semiconductor Structures, Kyoto 1985, p. 573Google Scholar