Trions in quantum-well structures with two-dimensional electron gas

被引：0
|
作者：
D. B. Turchinovich
V. P. Kochereshko
D. R. Yakovlev
W. Ossau
G. Landwehr
T. Wojtowicz
G. Karczewski
J. Kossut
机构：
[1] Russian Academy of Sciences,A. F. Ioffe Physicotechnical Institute
[2] Physikalisches Institut der Universität Würzburg,Institute of Physics
[3] Polish Academy of Sciences,undefined
来源：
Physics of the Solid State | 1998年 / 40卷
关键词：
Spectroscopy; State Physics; Reflectance Spectrum; Dielectric Permittivity;
D O I：
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中图分类号：
学科分类号：
摘要：
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.
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页码：747 / 749
页数：2
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