Photoluminescence spectroscopy on single CdSe quantum dots in a semimagnetic ZnMnSe matrix

H. Schömig, M. K. Welsch, G. Bacher, A. Forchel, S. Zaitsev, A. A. Maksimov, V. D. Kulakovskii, S. Lee, M. Dobrowolska, J. K. Furdyna

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Photoluminescence spectroscopy with high spatial resolution has been applied to study single CdSe quantum dots embedded in a semimagnetic ZnMnSe matrix. The exchange interaction between the exciton and Mn2+ ions of the crystal matrix results in the formation of a ferromagnetically aligned spin complex, a quasi-0D excitonic magnetic polaron. We demonstrate, that the energy shift of the EMP with temperature and excitation power, respectively, directly reflects the change of the magnetization, in particular the spin temperature, on a nanometer scale.

Original languageEnglish
Pages (from-to)512-515
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume13
Issue number2-4
DOIs
Publication statusPublished - 2002 Mar
Externally publishedYes

Keywords

  • Diluted magnetic semiconductors
  • Excitonic magnetic polaron
  • Nanomagnetism
  • Quantum dots

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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