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Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots. / Kalevich, V. K.; Merkulov, I. A.; Shiryaev, A. Yu; Kavokin, K. V.; Ikezawa, M.; Okuno, T.; Brunkov, P. N.; Zhukov, A. E.; Ustinov, V. M.; Masumoto, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 4, 045325, 15.07.2005.

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

Harvard

Kalevich, VK, Merkulov, IA, Shiryaev, AY, Kavokin, KV, Ikezawa, M, Okuno, T, Brunkov, PN, Zhukov, AE, Ustinov, VM & Masumoto, Y 2005, 'Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots', Physical Review B - Condensed Matter and Materials Physics, vol. 72, no. 4, 045325. https://doi.org/10.1103/PhysRevB.72.045325

APA

Kalevich, V. K., Merkulov, I. A., Shiryaev, A. Y., Kavokin, K. V., Ikezawa, M., Okuno, T., Brunkov, P. N., Zhukov, A. E., Ustinov, V. M., & Masumoto, Y. (2005). Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots. Physical Review B - Condensed Matter and Materials Physics, 72(4), [045325]. https://doi.org/10.1103/PhysRevB.72.045325

Vancouver

Kalevich VK, Merkulov IA, Shiryaev AY, Kavokin KV, Ikezawa M, Okuno T et al. Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots. Physical Review B - Condensed Matter and Materials Physics. 2005 Jul 15;72(4). 045325. https://doi.org/10.1103/PhysRevB.72.045325

Author

Kalevich, V. K. ; Merkulov, I. A. ; Shiryaev, A. Yu ; Kavokin, K. V. ; Ikezawa, M. ; Okuno, T. ; Brunkov, P. N. ; Zhukov, A. E. ; Ustinov, V. M. ; Masumoto, Y. / Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 72, No. 4.

BibTeX

@article{78e0e1f2088844aea93f9d4bd9f740bf,
title = "Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots",
abstract = "The work is an experimental study of optical spin polarization in InAs GaAs quantum dots (QDs) with two resident electrons or holes. A capture of a photogenerated electron-hole pair into such a QD creates a negative or positive tetron (doubly charged exciton). Spin polarization was registered by the circular polarization of the QD photoluminescence (PL). The spin state was found to be radically different in the dots with the opposite sign of the charge. Particularly, under excitation in a GaAs barrier, the polarization of the ground-state PL is negative (relative to the polarization of exciting light) in the negatively charged QDs and positive in the positively charged QDs. With increasing excitation intensity, the negative polarization rises from zero up to a saturation level, while the positive polarization decreases. The negative polarization increases in weak magnetic fields applied in Faraday geometry; however, it is suppressed in strong fields. The positive polarization always increases as a function of magnetic field. We propose a theoretical model that qualitatively explains the experimental results.",
author = "Kalevich, {V. K.} and Merkulov, {I. A.} and Shiryaev, {A. Yu} and Kavokin, {K. V.} and M. Ikezawa and T. Okuno and Brunkov, {P. N.} and Zhukov, {A. E.} and Ustinov, {V. M.} and Y. Masumoto",
year = "2005",
month = jul,
day = "15",
doi = "10.1103/PhysRevB.72.045325",
language = "English",
volume = "72",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Optical spin polarization and exchange interaction in doubly charged InAs self-assembled quantum dots

AU - Kalevich, V. K.

AU - Merkulov, I. A.

AU - Shiryaev, A. Yu

AU - Kavokin, K. V.

AU - Ikezawa, M.

AU - Okuno, T.

AU - Brunkov, P. N.

AU - Zhukov, A. E.

AU - Ustinov, V. M.

AU - Masumoto, Y.

PY - 2005/7/15

Y1 - 2005/7/15

N2 - The work is an experimental study of optical spin polarization in InAs GaAs quantum dots (QDs) with two resident electrons or holes. A capture of a photogenerated electron-hole pair into such a QD creates a negative or positive tetron (doubly charged exciton). Spin polarization was registered by the circular polarization of the QD photoluminescence (PL). The spin state was found to be radically different in the dots with the opposite sign of the charge. Particularly, under excitation in a GaAs barrier, the polarization of the ground-state PL is negative (relative to the polarization of exciting light) in the negatively charged QDs and positive in the positively charged QDs. With increasing excitation intensity, the negative polarization rises from zero up to a saturation level, while the positive polarization decreases. The negative polarization increases in weak magnetic fields applied in Faraday geometry; however, it is suppressed in strong fields. The positive polarization always increases as a function of magnetic field. We propose a theoretical model that qualitatively explains the experimental results.

AB - The work is an experimental study of optical spin polarization in InAs GaAs quantum dots (QDs) with two resident electrons or holes. A capture of a photogenerated electron-hole pair into such a QD creates a negative or positive tetron (doubly charged exciton). Spin polarization was registered by the circular polarization of the QD photoluminescence (PL). The spin state was found to be radically different in the dots with the opposite sign of the charge. Particularly, under excitation in a GaAs barrier, the polarization of the ground-state PL is negative (relative to the polarization of exciting light) in the negatively charged QDs and positive in the positively charged QDs. With increasing excitation intensity, the negative polarization rises from zero up to a saturation level, while the positive polarization decreases. The negative polarization increases in weak magnetic fields applied in Faraday geometry; however, it is suppressed in strong fields. The positive polarization always increases as a function of magnetic field. We propose a theoretical model that qualitatively explains the experimental results.

UR - http://www.scopus.com/inward/record.url?scp=33749233617&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.72.045325

DO - 10.1103/PhysRevB.72.045325

M3 - Article

AN - SCOPUS:33749233617

VL - 72

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 4

M1 - 045325

ER -

ID: 39910747