Novel CdTe/CdMgTe Graded Quantum Well Structures |
| T. Wojtowicz, M. Kutrowski, G. Karczewski, G. Cywiński, M. Surma, J. Kossut Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland D.R. Yakovlev, W. Ossau, G. Landwehr Physikalisches Institut der Universität Würzburg, Am Hubland, 97074 Würzburg, Germany and V. Kochereshko A.F. Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia |
| Full Text PDF |
| We report on growth and magnetooptical studies of two types of novel CdTe/CdMgTe quantum well structures having a precisely controlled grading of either the quantum well width or the donor concentration in a direction perpendicular to the growth axis. The presence of two-dimensional electron gas of varying concentration produced by the graded modulation doping was evidenced by observation of negatively charged exciton-electron complexes (X¯). |
| DOI: 10.12693/APhysPolA.92.1063 PACS numbers: 73.20.Dx, 78.55.Et |