Landolt-Börnstein - Group III Condensed Matter

Telluride diluted magnetic semiconductor superlattices and coupled quantum wells

Abstract

This chapter talks about the properties of telluride-based superlattices (SLs) and coupled quantum wells (QWs) which are explicitly influenced by the diluted magnetic semiconductor (DMS) character of the constituents and by the coupling between the wells. Electronic states and spin states in DMS SLs are described. The spin-down excitons which are confined in the DMS and spin-up excitons in the non-DMS layers leading to strongly differing Zeeman shift of the related optical transitions and an increase of the exciton life time with magnetic field are shown. Further, the chapter discusses about the magnetic polarons and polaritons under the influence of magnetic field. The dependence of the stability of magnetic polarons on the dimensionality of the semiconductors can be demonstrated in a spin superlattice. The dynamic processes including excitonic tunneling in asymmetric double quantum wells (ADQWs) and, spin relaxation and spin injection are explained.

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Title
Telluride diluted magnetic semiconductor superlattices and coupled quantum wells
Book Title
Optical Properties. Part 2
In
Superlattices and coupled quantum-well structures of II-VI compounds
Book DOI
10.1007/b98078
Chapter DOI
10.1007/10860224_20
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
34C2
Editors
  • C. Klingshirn Send Email (10)
  • Editor Affiliation
  • 10 Institut für Angewandte Physik, Universität Karlsruhe (TH), 76131, Karlsruhe, Gemany
  • Authors
  • H. Kalt Send Email (101)
  • Author Affiliation
  • 101 Institut für Angewandte Physik, Universität Karlsruhe (TH), 76131, Karlsruhe, Gemany
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