Super-long life time for 2D cyclotron spin-flip excitons

An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited spin-magnetoexcitons were found to exhibit extremely slow relaxation in spe...

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Autores principales: Kulik, L. V., Gorbunov, A. V., Zhuravlev, A. S., Timofeev, V. B., Dickmann, S., Kukushkin, I. V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4437318/
https://www.ncbi.nlm.nih.gov/pubmed/25989313
http://dx.doi.org/10.1038/srep10354
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author Kulik, L. V.
Gorbunov, A. V.
Zhuravlev, A. S.
Timofeev, V. B.
Dickmann, S.
Kukushkin, I. V.
author_facet Kulik, L. V.
Gorbunov, A. V.
Zhuravlev, A. S.
Timofeev, V. B.
Dickmann, S.
Kukushkin, I. V.
author_sort Kulik, L. V.
collection PubMed
description An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited spin-magnetoexcitons were found to exhibit extremely slow relaxation in specific quantum Hall systems, fabricated in high mobility GaAs/AlGaAs structures; namely, the relaxation time reaches values over one hundred microseconds. A qualitative explanation of this spin-relaxation kinetics is presented. Its temperature and magnetic field dependencies are discussed within the available theoretical framework.
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spelling pubmed-44373182015-06-01 Super-long life time for 2D cyclotron spin-flip excitons Kulik, L. V. Gorbunov, A. V. Zhuravlev, A. S. Timofeev, V. B. Dickmann, S. Kukushkin, I. V. Sci Rep Article An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited spin-magnetoexcitons were found to exhibit extremely slow relaxation in specific quantum Hall systems, fabricated in high mobility GaAs/AlGaAs structures; namely, the relaxation time reaches values over one hundred microseconds. A qualitative explanation of this spin-relaxation kinetics is presented. Its temperature and magnetic field dependencies are discussed within the available theoretical framework. Nature Publishing Group 2015-05-19 /pmc/articles/PMC4437318/ /pubmed/25989313 http://dx.doi.org/10.1038/srep10354 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Kulik, L. V.
Gorbunov, A. V.
Zhuravlev, A. S.
Timofeev, V. B.
Dickmann, S.
Kukushkin, I. V.
Super-long life time for 2D cyclotron spin-flip excitons
title Super-long life time for 2D cyclotron spin-flip excitons
title_full Super-long life time for 2D cyclotron spin-flip excitons
title_fullStr Super-long life time for 2D cyclotron spin-flip excitons
title_full_unstemmed Super-long life time for 2D cyclotron spin-flip excitons
title_short Super-long life time for 2D cyclotron spin-flip excitons
title_sort super-long life time for 2d cyclotron spin-flip excitons
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4437318/
https://www.ncbi.nlm.nih.gov/pubmed/25989313
http://dx.doi.org/10.1038/srep10354
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