Spin relaxation dynamics in highly uniform InAs quantum dots

Atsushi Tackeuchi, R. Ohtsubo, K. Yamaguchi, M. Murayama, T. Kitamura, T. Kuroda, T. Takagahara

    Research output: Contribution to journalArticle

    54 Citations (Scopus)

    Abstract

    The carrier spin dynamics in self-assembled InAs quantum dots (QD) was investigated using spin dependent time-resolved photoluminescence (PL) measurements. The spin dynamics was observed in ground state and second state without disturbance of inhomogeneous broadening in highly uniform QDs. The spin relaxation time in ground state was 1.0 ns and second state was 0.6 ns. The results show decrease in spin relaxation time from 1.1 ns at 10 K to 200 ps at 130 K.

    Original languageEnglish
    Pages (from-to)3576-3578
    Number of pages3
    JournalApplied Physics Letters
    Volume84
    Issue number18
    DOIs
    Publication statusPublished - 2004 May 3

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    quantum dots
    spin dynamics
    relaxation time
    ground state
    disturbances
    photoluminescence

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Tackeuchi, A., Ohtsubo, R., Yamaguchi, K., Murayama, M., Kitamura, T., Kuroda, T., & Takagahara, T. (2004). Spin relaxation dynamics in highly uniform InAs quantum dots. Applied Physics Letters, 84(18), 3576-3578. https://doi.org/10.1063/1.1737068

    Spin relaxation dynamics in highly uniform InAs quantum dots. / Tackeuchi, Atsushi; Ohtsubo, R.; Yamaguchi, K.; Murayama, M.; Kitamura, T.; Kuroda, T.; Takagahara, T.

    In: Applied Physics Letters, Vol. 84, No. 18, 03.05.2004, p. 3576-3578.

    Research output: Contribution to journalArticle

    Tackeuchi, A, Ohtsubo, R, Yamaguchi, K, Murayama, M, Kitamura, T, Kuroda, T & Takagahara, T 2004, 'Spin relaxation dynamics in highly uniform InAs quantum dots', Applied Physics Letters, vol. 84, no. 18, pp. 3576-3578. https://doi.org/10.1063/1.1737068
    Tackeuchi A, Ohtsubo R, Yamaguchi K, Murayama M, Kitamura T, Kuroda T et al. Spin relaxation dynamics in highly uniform InAs quantum dots. Applied Physics Letters. 2004 May 3;84(18):3576-3578. https://doi.org/10.1063/1.1737068
    Tackeuchi, Atsushi ; Ohtsubo, R. ; Yamaguchi, K. ; Murayama, M. ; Kitamura, T. ; Kuroda, T. ; Takagahara, T. / Spin relaxation dynamics in highly uniform InAs quantum dots. In: Applied Physics Letters. 2004 ; Vol. 84, No. 18. pp. 3576-3578.
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