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Trions in quantum-well structures with two-dimensional electron gas |
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| Authors: | D. B. Turchinovich V. P. Kochereshko D. R. Yakovlev W. Ossau G. Landwehr T. Wojtowicz G. Karczewski J. Kossut |
| Affiliation: | 2. Institute of Physics, Polish Academy of Sciences, PL02608, Warsaw, Poland 1. Physikalisches Institut der Universit?t Würzburg, 97074, Würzburg, Germany 3. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia |
| Abstract: | A study has been made of bound exciton-electron complexes (trions) and unbound exciton-electron states (combined exciton-cyclotron resonance) from reflectance spectra obtained from modulation-doped CdTe/CdMgTe quantum-well structures. It has been established that the contribution of trions to dielectric permittivity is comparable to that of excitons. An analysis is made of the magnetic-field dependence of the parameters describing the contribution to dielectric permittivity due to exciton-cyclotron-resonance states. Fiz. Tverd. Tela (St. Petersburg) 40, 813–815 (May 1998) |
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