Paper
3 September 1992 Two-dimensional exciton magnetic polaron dynamics in thin CdTe/(Cd,Mn)Te quantum wells
Kirill V. Kavokin, Alexey V. Kavokin, Igor N. Uraltsev, Dmitrii R. Yakovlev, Gottfried Landwehr, A. Pohlmann
Author Affiliations +
Proceedings Volume 1675, Quantum Well and Superlattice Physics IV; (1992) https://doi.org/10.1117/12.137629
Event: Semiconductors '92, 1992, Somerset, NJ, United States
Abstract
Dynamics of the two-dimensional exciton magnetic polaron (EMP) formation in thin CdTe/Cd0.79Mn0.21Te quantum wells is analyzed on the base of solving the non- stationary Schroedinger equation with the time dependent exchange potential and measured by time-resolved spectroscopy. The magnetic polaron formation time is found to enhance dramatically with an increase of the QW width, Lz, to exceed the exciton life-time at Lz > 10 angstroms and to suppress the observed polaron energy shift at Lz > 25 angstroms. Analyzing the effect of the initial exciton localization due to Lz fluctuations on the magnetic polaron formation we conclude that EMP can be considered as quasi-free. The EMP formation is shown to be governed by the in-plane exciton magnetic autolocalization.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kirill V. Kavokin, Alexey V. Kavokin, Igor N. Uraltsev, Dmitrii R. Yakovlev, Gottfried Landwehr, and A. Pohlmann "Two-dimensional exciton magnetic polaron dynamics in thin CdTe/(Cd,Mn)Te quantum wells", Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); https://doi.org/10.1117/12.137629
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KEYWORDS
Quantum wells

Excitons

Magnetism

Polarons

Physics

Superlattices

Ions

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