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Fizika Tverdogo Tela, 2020, Volume 62, Issue 11, Pages 1816–1821
DOI: https://doi.org/10.21883/FTT.2020.11.50054.149 (Mi ftt8247) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Semiconductors

Spin dynamics of negatively charged excitons in InP/(In,Ga)P quantum dots in a magnetic field

S. V. Nekrasova, Yu. G. Kusrayeva, I. A. Akimovab, L. Langerb, M. Koturb, D. R. Yakovlevab, M. Bayerab

a Ioffe Institute, St. Petersburg
b Experimentelle Physik 2, Technische Universität Dortmund, Dortmund, Germany
Full-text PDF (376 kB) Citations (1)
DOI: https://doi.org/10.21883/FTT.2020.11.50054.149
Abstract: The dynamics of the photoluminescence negative circular polarization of the InP/(In,Ga)P quantum dots ensemble was studied. We find that in the time-resolved dependences of the polarization there are no oscillations in Voigt magnetic field. Also, with increasing field the polarization declines to zero. Such behavior is attributed to the peculiarities of the negatively charged exciton spin dynamics, particularly, to the fact that in the negatively charged exciton ground state the spin dynamics is governed by the heavy hole. We show that magnetic field depolarization of the photoluminescence occurs once the field of dynamically polarized nuclear spins acting on electron spins is surpassed.
Keywords: quantum dots, optical orientation, spin dynamics, Hanle effect, dynamic nuclear polarization.
Funding agency Grant number
Russian Science Foundation 18-12-00352
Deutsche Forschungsgemeinschaft B4
This work was supported by the Russian Science Foundation (grant no. 18-12-00352). The work of I.A. Akimov, D.R. Yakovlev, M. Kotur, and M. Bayer was supported by the Deutsche Forschungsgemeinschaft within the joint initiative of the International Collaborative Research Center TRR 160 (project B4).
Received: 20.06.2020
Revised: 20.06.2020
Accepted: 15.07.2020
English version:
Physics of the Solid State, 2020, Volume 62, Issue 11, Pages 2033–2038
DOI: https://doi.org/10.1134/S1063783420110220
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: S. V. Nekrasov, Yu. G. Kusrayev, I. A. Akimov, L. Langer, M. Kotur, D. R. Yakovlev, M. Bayer, “Spin dynamics of negatively charged excitons in InP/(In,Ga)P quantum dots in a magnetic field”, Fizika Tverdogo Tela, 62:11 (2020), 1816–1821; Phys. Solid State, 62:11 (2020), 2033–2038
Citation in format AMSBIB
\Bibitem{NekKusAki20}
\by S.~V.~Nekrasov, Yu.~G.~Kusrayev, I.~A.~Akimov, L.~Langer, M.~Kotur, D.~R.~Yakovlev, M.~Bayer
\paper Spin dynamics of negatively charged excitons in InP/(In,Ga)P quantum dots in a magnetic field
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 11
\pages 1816--1821
\mathnet{http://mi.mathnet.ru/ftt8247}
\crossref{https://doi.org/10.21883/FTT.2020.11.50054.149}
\elib{https://elibrary.ru/item.asp?id=44257951}
\transl
\jour Phys. Solid State
\yr 2020
\vol 62
\issue 11
\pages 2033--2038
\crossref{https://doi.org/10.1134/S1063783420110220}
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    • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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