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Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths. / Михайлов, Андрей Валерьевич; Григорьев, Филипп Сергеевич; Yakovlev, Dmitri R.; Belykh, Vasilii; Bayer, Manfred; Reithmaier, J.P.; Benyoucef, M.

In: Physical Review B, Vol. 98, No. 20, 205306, 26.11.2018, p. 205306.

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Михайлов, АВ, Григорьев, ФС, Yakovlev, DR, Belykh, V, Bayer, M, Reithmaier, JP & Benyoucef, M 2018, 'Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths', Physical Review B, vol. 98, no. 20, 205306, pp. 205306. https://doi.org/10.1103/PhysRevB.98.205306

APA

Vancouver

Author

Михайлов, Андрей Валерьевич ; Григорьев, Филипп Сергеевич ; Yakovlev, Dmitri R. ; Belykh, Vasilii ; Bayer, Manfred ; Reithmaier, J.P. ; Benyoucef, M. / Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths. In: Physical Review B. 2018 ; Vol. 98, No. 20. pp. 205306.

BibTeX

@article{361c947de3e54fcb8370f5dd6fbbdc4a,
title = "Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths",
abstract = "We investigate the electron and hole spin relaxation in an ensemble of self-assembled InAs/In0.53 Al0.24 Ga0.23 As/InP quantum dots with emission wavelengths around 1.5 μm by using pump-probe Faraday rotation spectroscopy. Electron-spin dephasing due to the randomly oriented nuclear Overhauser fields is observed. At low temperatures we find a submicrosecond longitudinal electron-spin relaxation time T1 which depends unexpectedly strongly on temperature. At high temperatures the electron-spin relaxation time is limited by optical phonon scattering through spin-orbit interaction decreasing down to 0.1 ns at 260 K. We show that the hole spin relaxation is activated much more effectively by a temperature increase compared with the electrons.",
keywords = "ROOM-TEMPERATURE, INAS ISLANDS, LASERS, GENERATION, OPERATION",
author = "Михайлов, {Андрей Валерьевич} and Григорьев, {Филипп Сергеевич} and Yakovlev, {Dmitri R.} and Vasilii Belykh and Manfred Bayer and J.P. Reithmaier and M. Benyoucef",
note = "Funding Information: We are grateful to I. A. Yugova and N. E. Kopteva for useful discussions, to E. Kirstein for help with experiments, and to M. Yacob for help with the sample growth. Financial support from the Russian Foundation for Basic Research (RFBR, Project No. 15-52-12019) and Deutsche Forschungsgemeinschaft (DFG, Project A1) in the framework of International Collaborative Research Center TRR 160 is acknowledged. The Dortmund and Kassel teams acknowledge the support of the BMBF in the frame of the Project Q.com-H (Contracts No. 16KIS0104K and No. 16KIS0112). The Dortmund team also acknowledges support by the BMBF-project Q.Link.X (Contract No. 16KIS0857). M.B. thanks the Ministry of Education and Science of the Russian Federation (Contract No. 14.Z50.31.0021). A.V.M. acknowledges Saint-Petersburg State University for the research grant 11.34.2.2012. P.S.G. acknowledges support by the Russian Foundation for Basic Research (RFBR, Project No. 18-32-00568).",
year = "2018",
month = nov,
day = "26",
doi = "10.1103/PhysRevB.98.205306",
language = "English",
volume = "98",
pages = "205306",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "20",

}

RIS

TY - JOUR

T1 - Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths

AU - Михайлов, Андрей Валерьевич

AU - Григорьев, Филипп Сергеевич

AU - Yakovlev, Dmitri R.

AU - Belykh, Vasilii

AU - Bayer, Manfred

AU - Reithmaier, J.P.

AU - Benyoucef, M.

N1 - Funding Information: We are grateful to I. A. Yugova and N. E. Kopteva for useful discussions, to E. Kirstein for help with experiments, and to M. Yacob for help with the sample growth. Financial support from the Russian Foundation for Basic Research (RFBR, Project No. 15-52-12019) and Deutsche Forschungsgemeinschaft (DFG, Project A1) in the framework of International Collaborative Research Center TRR 160 is acknowledged. The Dortmund and Kassel teams acknowledge the support of the BMBF in the frame of the Project Q.com-H (Contracts No. 16KIS0104K and No. 16KIS0112). The Dortmund team also acknowledges support by the BMBF-project Q.Link.X (Contract No. 16KIS0857). M.B. thanks the Ministry of Education and Science of the Russian Federation (Contract No. 14.Z50.31.0021). A.V.M. acknowledges Saint-Petersburg State University for the research grant 11.34.2.2012. P.S.G. acknowledges support by the Russian Foundation for Basic Research (RFBR, Project No. 18-32-00568).

PY - 2018/11/26

Y1 - 2018/11/26

N2 - We investigate the electron and hole spin relaxation in an ensemble of self-assembled InAs/In0.53 Al0.24 Ga0.23 As/InP quantum dots with emission wavelengths around 1.5 μm by using pump-probe Faraday rotation spectroscopy. Electron-spin dephasing due to the randomly oriented nuclear Overhauser fields is observed. At low temperatures we find a submicrosecond longitudinal electron-spin relaxation time T1 which depends unexpectedly strongly on temperature. At high temperatures the electron-spin relaxation time is limited by optical phonon scattering through spin-orbit interaction decreasing down to 0.1 ns at 260 K. We show that the hole spin relaxation is activated much more effectively by a temperature increase compared with the electrons.

AB - We investigate the electron and hole spin relaxation in an ensemble of self-assembled InAs/In0.53 Al0.24 Ga0.23 As/InP quantum dots with emission wavelengths around 1.5 μm by using pump-probe Faraday rotation spectroscopy. Electron-spin dephasing due to the randomly oriented nuclear Overhauser fields is observed. At low temperatures we find a submicrosecond longitudinal electron-spin relaxation time T1 which depends unexpectedly strongly on temperature. At high temperatures the electron-spin relaxation time is limited by optical phonon scattering through spin-orbit interaction decreasing down to 0.1 ns at 260 K. We show that the hole spin relaxation is activated much more effectively by a temperature increase compared with the electrons.

KW - ROOM-TEMPERATURE

KW - INAS ISLANDS

KW - LASERS

KW - GENERATION

KW - OPERATION

UR - http://www.scopus.com/inward/record.url?scp=85057788876&partnerID=8YFLogxK

UR - http://arxiv.org/abs/1806.10515

UR - http://www.mendeley.com/research/electron-hole-spin-relaxation-inpbased-selfassembled-quantum-dots-emitting-telecom-wavelengths

U2 - 10.1103/PhysRevB.98.205306

DO - 10.1103/PhysRevB.98.205306

M3 - Article

VL - 98

SP - 205306

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 20

M1 - 205306

ER -

ID: 36009460