Anisotropic expansion of drifting spin helices in GaAs quantum wells

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Anisotropic expansion of drifting spin helices in GaAs quantum wells. / Anghel, S.; Poshakinskiy, A.; Schiller, K.; Passmann, F.; Ruppert, C.; Tarasenko, S. A.; Yusa, G.; Mano, T.; Noda, T.; Betz, M.

I: Physical Review B, Bind 103, Nr. 3, 035429, 25.01.2021.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Anghel, S, Poshakinskiy, A, Schiller, K, Passmann, F, Ruppert, C, Tarasenko, SA, Yusa, G, Mano, T, Noda, T & Betz, M 2021, 'Anisotropic expansion of drifting spin helices in GaAs quantum wells', Physical Review B, bind 103, nr. 3, 035429. https://doi.org/10.1103/PhysRevB.103.035429

APA

Anghel, S., Poshakinskiy, A., Schiller, K., Passmann, F., Ruppert, C., Tarasenko, S. A., Yusa, G., Mano, T., Noda, T., & Betz, M. (2021). Anisotropic expansion of drifting spin helices in GaAs quantum wells. Physical Review B, 103(3), [035429]. https://doi.org/10.1103/PhysRevB.103.035429

Vancouver

Anghel S, Poshakinskiy A, Schiller K, Passmann F, Ruppert C, Tarasenko SA o.a. Anisotropic expansion of drifting spin helices in GaAs quantum wells. Physical Review B. 2021 jan. 25;103(3). 035429. https://doi.org/10.1103/PhysRevB.103.035429

Author

Anghel, S. ; Poshakinskiy, A. ; Schiller, K. ; Passmann, F. ; Ruppert, C. ; Tarasenko, S. A. ; Yusa, G. ; Mano, T. ; Noda, T. ; Betz, M. / Anisotropic expansion of drifting spin helices in GaAs quantum wells. I: Physical Review B. 2021 ; Bind 103, Nr. 3.

Bibtex

@article{874cf26e214c45319c059c751437ec56,
title = "Anisotropic expansion of drifting spin helices in GaAs quantum wells",
abstract = "The drift of electron spin helices in an external in-plane electric field in GaAs quantum wells is studied by means of time-resolved magneto-optical Kerr microscopy. The evolution of the spin distribution measured for different excitation powers reveals that, for short delay times and higher excitation powers, the spin helix drift slows down while its envelope becomes anisotropic. The effect is understood as a local decrease of the electron gas mobility due to electron collisions with nonequilibrium holes within the excitation spot and is reproduced well in the kinetic theory framework. For larger delay times, when the electrons constituting the spin helix and nonequilibrium holes are separated by an electric field, the spin helix drift accelerates and the mobility reaches its unperturbed value again.",
keywords = "EXCITONS",
author = "S. Anghel and A. Poshakinskiy and K. Schiller and F. Passmann and C. Ruppert and Tarasenko, {S. A.} and G. Yusa and T. Mano and T. Noda and M. Betz",
year = "2021",
month = jan,
day = "25",
doi = "10.1103/PhysRevB.103.035429",
language = "English",
volume = "103",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Anisotropic expansion of drifting spin helices in GaAs quantum wells

AU - Anghel, S.

AU - Poshakinskiy, A.

AU - Schiller, K.

AU - Passmann, F.

AU - Ruppert, C.

AU - Tarasenko, S. A.

AU - Yusa, G.

AU - Mano, T.

AU - Noda, T.

AU - Betz, M.

PY - 2021/1/25

Y1 - 2021/1/25

N2 - The drift of electron spin helices in an external in-plane electric field in GaAs quantum wells is studied by means of time-resolved magneto-optical Kerr microscopy. The evolution of the spin distribution measured for different excitation powers reveals that, for short delay times and higher excitation powers, the spin helix drift slows down while its envelope becomes anisotropic. The effect is understood as a local decrease of the electron gas mobility due to electron collisions with nonequilibrium holes within the excitation spot and is reproduced well in the kinetic theory framework. For larger delay times, when the electrons constituting the spin helix and nonequilibrium holes are separated by an electric field, the spin helix drift accelerates and the mobility reaches its unperturbed value again.

AB - The drift of electron spin helices in an external in-plane electric field in GaAs quantum wells is studied by means of time-resolved magneto-optical Kerr microscopy. The evolution of the spin distribution measured for different excitation powers reveals that, for short delay times and higher excitation powers, the spin helix drift slows down while its envelope becomes anisotropic. The effect is understood as a local decrease of the electron gas mobility due to electron collisions with nonequilibrium holes within the excitation spot and is reproduced well in the kinetic theory framework. For larger delay times, when the electrons constituting the spin helix and nonequilibrium holes are separated by an electric field, the spin helix drift accelerates and the mobility reaches its unperturbed value again.

KW - EXCITONS

U2 - 10.1103/PhysRevB.103.035429

DO - 10.1103/PhysRevB.103.035429

M3 - Journal article

VL - 103

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 3

M1 - 035429

ER -

ID: 260403690