title: Comparison of magneto-optical properties of various excitonic complexes in CdTe and CdSe self-assembled quantum dots.
abstract: We present a comparative study of two self-assembled quantum dot (QD) systems based on II-VI compounds: CdTe/ZnTe and CdSe/ZnSe. Using magneto-optical techniques we investigated a large population of individual QDs. The systematic photoluminescence studies of emission lines related to the recombination of neutral exciton X, biexciton XX, and singly charged excitons (X(+), X(-)) allowed us to determine average parameters describing CdTe QDs (CdSe QDs): X-XX transition energy difference 12 meV (24 meV); fine-structure splitting δ1=0.14 meV (δ1=0.47 meV); g-factor g  =  2.12 (g  =  1.71); diamagnetic shift γ=2.5 μeV T(-2) (γ =1.3 μeV T(-2)). We find also statistically significant correlations between various parameters describing internal structure of excitonic complexes.
authors.affiliation: Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Kobak
authors.forename: T
authors.initials: T
authors.lastname: Smoleński
authors.forename: M
authors.initials: M
authors.lastname: Goryca
authors.forename: J-G
authors.initials: JG
authors.lastname: Rousset
authors.forename: W
authors.initials: W
authors.lastname: Pacuski
authors.forename: A
authors.initials: A
authors.lastname: Bogucki
authors.forename: K
authors.initials: K
authors.lastname: Oreszczuk
authors.forename: P
authors.initials: P
authors.lastname: Kossacki
authors.forename: M
authors.initials: M
authors.lastname: Nawrocki
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authors.initials: A
authors.lastname: Golnik
authors.forename: J
authors.initials: J
authors.lastname: Płachta
authors.forename: P
authors.initials: P
authors.lastname: Wojnar
authors.forename: C
authors.initials: C
authors.lastname: Kruse
authors.forename: D
authors.initials: D
authors.lastname: Hommel
authors.forename: M
authors.initials: M
authors.lastname: Potemski
authors.forename: T
authors.initials: T
authors.lastname: Kazimierczuk