Landolt-Börnstein - Group III Condensed Matter

Selenide diluted-magnetic semiconductor quantum-well structures: (Cd,Mn)Se, (Zn,Mn)Se, and (Zn,Fe)Se QWs

Abstract

This chapter reviews the properties of selenide quantum well (QW) structures based on the diluted magnetic semiconductors (DMS) (Cd,Mn)Se, (Zn,Mn)Se, and (Zn,Fe)Se. Zeeman splitting in non-DMS (well)/DMS (barrier) QW and DMS (well)/non-DMS (barrier) QW structures are described. Photoluminescence (PL) signal obtained from three (Zn,Cd)Se/(Zn,Mn)Se SQWs with well widths of 10.5 nm, 4.2 nm, and 2 nm, respectively, grown in a monolithic structure is shown. Zeeman splitting in digital magnetic (Cd,Zn,Mn)Se/ZnSe QWs is tested by absorption spectroscopy. Schematic representation of the effects of strain and a magnetic field-induced spin splitting on the band alignment in ZnSe/(Zn,Mn)Se or ZnSe/(Zn,Fe)Se QWs on GaAs substrate is shown. Magnetic tailoring of the fundamental optical transition from a type-I light hole exciton to a type-II heavy-hole exciton is reported for ZnSe/(Zn,Mn)Se QWs grown on ZnSe or (Zn,Mn)Se buffers. Interface effects in non-DMS/DMS QW structures are described. Coulomb-bound electron-hole pairs and complexes in the low-density regime are discussed. Reflectance spectra ZnSe/(Zn,Fe)Se QWs is shown. Excitonic transitions, magnetic polarons and relaxation of optical excitations have been discussed. A study of the magnetic field dependence of the photoluminescence (PL) from a two-dimensional electron gas is presented. Coherent dynamics and relaxation of optical excitations are discussed. A description of recombination processes is presented.

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Title
Selenide diluted-magnetic semiconductor quantum-well structures: (Cd,Mn)Se, (Zn,Mn)Se, and (Zn,Fe)Se QWs
Book Title
Optical Properties. Part 2
In
Quantum-well structures of II-VI compounds
Book DOI
10.1007/b98078
Chapter DOI
10.1007/10860224_13
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
  • Cite this content

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