Electron-hole complexes in individual semimagnetic quantum dots

P. S. Dorozhkin, A. S. Brichkin, V. D. Kulakovskii, A. V. Chernenko, S. V. Zaitsev, S. V. Ivanov, A. A. Toropov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We compare magneto-photoluminescence spectra of individual semimagnetic quantum dots (QDs) with different strengths of exchange interaction between a localized exciton and surrounding magnetic ions. The spectra of individual QDs with strong magnetic exchange interaction show a single line corresponding to a ground-state exciton. In QDs with weak interaction, exciton and biexciton spectra are identified, both showing a fine structure due to electron-hole exchange interaction. The anticrossing of dark and bright exciton states in low-symmetry QDs is demonstrated in magnetic fields in the Faraday geometry.

Original languageEnglish
Pages (from-to)2609-2613
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume202
Issue number14
DOIs
Publication statusPublished - Nov 2005
Externally publishedYes

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