Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T)

R. Cingolani, M. De Giorgi (Corresponding Author), R. Rinaldi, H. Lipsanen, M. Sopanen, R. Virkkala, K. Maijala, J. Tulkki, Jouni Ahopelto, K. Uchida, N. Miura, Y. Arakawa

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    The influence of the direct and exchange Coulomb interaction on Landau level formation in strain-induced quantum dots (QD) has been studied by high-field (45 T) magneto-luminescence and by many-electron–many-hole Hartree–Fock calculations. The Darwin–Fock states of the dots are found to merge into a single Landau level at very high fields with a considerable reduction in the total diamagnetic shift due to the enhanced electron–hole correlation caused by the increased degeneracy of the state. We calculate a 50% reduction of the diamagnetic shift as a result of direct and exchange Coulomb interaction in the squeezed carrier states, in excellent agreement with the experimental findings.
    Original languageEnglish
    Pages (from-to)346-349
    Number of pages4
    JournalPhysica E: Low-Dimensional Systems and Nanostructures
    Volume7
    Issue number3-4
    DOIs
    Publication statusPublished - 2000
    MoE publication typeA1 Journal article-refereed

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    Coulomb interactions
    Semiconductor quantum dots
    quantum dots
    Magnetic fields
    shift
    magnetic fields
    Luminescence
    interactions
    luminescence

    Cite this

    Cingolani, R., De Giorgi, M., Rinaldi, R., Lipsanen, H., Sopanen, M., Virkkala, R., ... Arakawa, Y. (2000). Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T). Physica E: Low-Dimensional Systems and Nanostructures, 7(3-4), 346-349. https://doi.org/10.1016/S1386-9477(99)00338-0
    Cingolani, R. ; De Giorgi, M. ; Rinaldi, R. ; Lipsanen, H. ; Sopanen, M. ; Virkkala, R. ; Maijala, K. ; Tulkki, J. ; Ahopelto, Jouni ; Uchida, K. ; Miura, N. ; Arakawa, Y. / Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T). In: Physica E: Low-Dimensional Systems and Nanostructures. 2000 ; Vol. 7, No. 3-4. pp. 346-349.
    @article{6c133ed8fff546c68449537b69960d4b,
    title = "Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T)",
    abstract = "The influence of the direct and exchange Coulomb interaction on Landau level formation in strain-induced quantum dots (QD) has been studied by high-field (45 T) magneto-luminescence and by many-electron–many-hole Hartree–Fock calculations. The Darwin–Fock states of the dots are found to merge into a single Landau level at very high fields with a considerable reduction in the total diamagnetic shift due to the enhanced electron–hole correlation caused by the increased degeneracy of the state. We calculate a 50{\%} reduction of the diamagnetic shift as a result of direct and exchange Coulomb interaction in the squeezed carrier states, in excellent agreement with the experimental findings.",
    author = "R. Cingolani and {De Giorgi}, M. and R. Rinaldi and H. Lipsanen and M. Sopanen and R. Virkkala and K. Maijala and J. Tulkki and Jouni Ahopelto and K. Uchida and N. Miura and Y. Arakawa",
    year = "2000",
    doi = "10.1016/S1386-9477(99)00338-0",
    language = "English",
    volume = "7",
    pages = "346--349",
    journal = "Physica E: Low-Dimensional Systems and Nanostructures",
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    Cingolani, R, De Giorgi, M, Rinaldi, R, Lipsanen, H, Sopanen, M, Virkkala, R, Maijala, K, Tulkki, J, Ahopelto, J, Uchida, K, Miura, N & Arakawa, Y 2000, 'Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T)', Physica E: Low-Dimensional Systems and Nanostructures, vol. 7, no. 3-4, pp. 346-349. https://doi.org/10.1016/S1386-9477(99)00338-0

    Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T). / Cingolani, R.; De Giorgi, M. (Corresponding Author); Rinaldi, R.; Lipsanen, H.; Sopanen, M.; Virkkala, R.; Maijala, K.; Tulkki, J.; Ahopelto, Jouni; Uchida, K.; Miura, N.; Arakawa, Y.

    In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 7, No. 3-4, 2000, p. 346-349.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Effects of electron–hole correlation in quantum dots under high magnetic field (up to 45 T)

    AU - Cingolani, R.

    AU - De Giorgi, M.

    AU - Rinaldi, R.

    AU - Lipsanen, H.

    AU - Sopanen, M.

    AU - Virkkala, R.

    AU - Maijala, K.

    AU - Tulkki, J.

    AU - Ahopelto, Jouni

    AU - Uchida, K.

    AU - Miura, N.

    AU - Arakawa, Y.

    PY - 2000

    Y1 - 2000

    N2 - The influence of the direct and exchange Coulomb interaction on Landau level formation in strain-induced quantum dots (QD) has been studied by high-field (45 T) magneto-luminescence and by many-electron–many-hole Hartree–Fock calculations. The Darwin–Fock states of the dots are found to merge into a single Landau level at very high fields with a considerable reduction in the total diamagnetic shift due to the enhanced electron–hole correlation caused by the increased degeneracy of the state. We calculate a 50% reduction of the diamagnetic shift as a result of direct and exchange Coulomb interaction in the squeezed carrier states, in excellent agreement with the experimental findings.

    AB - The influence of the direct and exchange Coulomb interaction on Landau level formation in strain-induced quantum dots (QD) has been studied by high-field (45 T) magneto-luminescence and by many-electron–many-hole Hartree–Fock calculations. The Darwin–Fock states of the dots are found to merge into a single Landau level at very high fields with a considerable reduction in the total diamagnetic shift due to the enhanced electron–hole correlation caused by the increased degeneracy of the state. We calculate a 50% reduction of the diamagnetic shift as a result of direct and exchange Coulomb interaction in the squeezed carrier states, in excellent agreement with the experimental findings.

    U2 - 10.1016/S1386-9477(99)00338-0

    DO - 10.1016/S1386-9477(99)00338-0

    M3 - Article

    VL - 7

    SP - 346

    EP - 349

    JO - Physica E: Low-Dimensional Systems and Nanostructures

    JF - Physica E: Low-Dimensional Systems and Nanostructures

    SN - 1386-9477

    IS - 3-4

    ER -