Optical spectroscopy on individual ADSe/ZnMnSe quantum dots

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

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)

Abstract

Optical single dot studies in wide-band gap diluted magnetic CdSe/ZnMnSe quantum dots have been performed. Due to the sample design, the photoluminescence energy of the quantum dot signal is energetically below the internal Mn2+ transition, resulting in high quantum efficiencies comparable to nonmagnetic CdSe/ZnSe quantum dots. Magnetic-field-and temperature-dependent measurements on individual dots clearly demonstrate the exchange interaction between single excitons and individual Mn2+ ions, resulting in a giant Zeeman effect and a formation of quasi-zero-dimensional magnetic polarons.

Original languageEnglish
Pages (from-to)524-526
Number of pages3
JournalApplied Physics Letters
Volume79
Issue number4
DOIs
Publication statusPublished - 2001 Jul 23
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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