Electron-hole correlation in quantum dots under high magnetic field (up to 45 T)

R. Cingolani; R. Rinaldi; Harri Lipsanen; Markku Sopanen; R. Virkkala; K. Maijala; J Tulkki; Jouni Ahopelto; K. Uchida; N. Miura; Y. Arakawa

doi:10.1103/PhysRevLett.83.4832

Electron-hole correlation in quantum dots under high magnetic field (up to 45 T)

R. Cingolani, R. Rinaldi, Harri Lipsanen, Markku Sopanen, R. Virkkala, K. Maijala, J Tulkki, Jouni Ahopelto, K. Uchida, N. Miura, Y. Arakawa

Research output: Contribution to journal › Article › Scientific › peer-review

21 Citations (Scopus)

Abstract

The influence of the direct and exchange Coulomb interaction on Landau level formation in strain induced quantum dots has been studied by high-field (45 T) magnetoluminescence and by many-electron many-hole Hartree-Fock calculations. The Darwin Fock states of the dots are found to merge into a unique 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 language	English
Pages (from-to)	4832-4835
Number of pages	4
Journal	Physical Review Letters
Volume	83
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.83.4832
Publication status	Published - 1999
MoE publication type	A1 Journal article-refereed

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10.1103/PhysRevLett.83.4832

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title = "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 has been studied by high-field (45 T) magnetoluminescence and by many-electron many-hole Hartree-Fock calculations. The Darwin Fock states of the dots are found to merge into a unique 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 R. Rinaldi and Harri Lipsanen and Markku Sopanen and R. Virkkala and K. Maijala and J Tulkki and Jouni Ahopelto and K. Uchida and N. Miura and Y. Arakawa",

year = "1999",

doi = "10.1103/PhysRevLett.83.4832",

language = "English",

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TY - JOUR

T1 - Electron-hole correlation in quantum dots under high magnetic field (up to 45 T)

AU - Cingolani, R.

AU - Rinaldi, R.

AU - Lipsanen, Harri

AU - Sopanen, Markku

AU - Virkkala, R.

AU - Maijala, K.

AU - Tulkki, J

AU - Ahopelto, Jouni

AU - Uchida, K.

AU - Miura, N.

AU - Arakawa, Y.

PY - 1999

Y1 - 1999

N2 - The influence of the direct and exchange Coulomb interaction on Landau level formation in strain induced quantum dots has been studied by high-field (45 T) magnetoluminescence and by many-electron many-hole Hartree-Fock calculations. The Darwin Fock states of the dots are found to merge into a unique 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 has been studied by high-field (45 T) magnetoluminescence and by many-electron many-hole Hartree-Fock calculations. The Darwin Fock states of the dots are found to merge into a unique 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 - 10.1103/PhysRevLett.83.4832

DO - 10.1103/PhysRevLett.83.4832

M3 - Article

SN - 0031-9007

VL - 83

SP - 4832

EP - 4835

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

ER -

Electron-hole correlation in quantum dots under high magnetic field (up to 45 T)

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