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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2022, Volume 116, Issue 11, Pages 756–762
DOI: https://doi.org/10.31857/S1234567822230033
(Mi jetpl6812)
 

CONDENSED MATTER

Spatial spreading of the condensate of magnetoexcitons in a quantum Hall insulator

A. V. Gorbunov, A. V. Larionov, L. V. Kulik, V. B. Timofeev

a Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia
References:
Abstract: The spatial spreading of a dense ensemble of spin cyclotron magnetoexcitons in a quantum Hall insulator at the filling factor $\nu= 2$ is visualized using an optical system with a high aperture ratio. It is found that nondiffusive propagation over macroscopic distances is characteristic not only of excitons with a momentum on the order of the reciprocal magnetic length, which form a coherent condensate of magnetoexcitons, but also of excitons with very low momenta. The nondiffusive propagation of magnetoexciton condensates in real space is accompanied by a huge threshold increase in the amplitude of light reflection from excitations. The possible explanations of the observed behavior are discussed.
Funding agency Grant number
Russian Science Foundation 21-12-00368
This study was supported by the Russian Science Foundation, project no. 21-12-00368.
Received: 03.10.2022
Revised: 17.10.2022
Accepted: 18.10.2022
English version:
Journal of Experimental and Theoretical Physics Letters, 2022, Volume 116, Issue 11, Pages 779–784
DOI: https://doi.org/10.1134/S0021364022602378
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. V. Gorbunov, A. V. Larionov, L. V. Kulik, V. B. Timofeev, “Spatial spreading of the condensate of magnetoexcitons in a quantum Hall insulator”, Pis'ma v Zh. Èksper. Teoret. Fiz., 116:11 (2022), 756–762; JETP Letters, 116:11 (2022), 779–784
Citation in format AMSBIB
\Bibitem{GorLarKul22}
\by A.~V.~Gorbunov, A.~V.~Larionov, L.~V.~Kulik, V.~B.~Timofeev
\paper Spatial spreading of the condensate of magnetoexcitons in a quantum Hall insulator
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2022
\vol 116
\issue 11
\pages 756--762
\mathnet{http://mi.mathnet.ru/jetpl6812}
\crossref{https://doi.org/10.31857/S1234567822230033}
\edn{https://elibrary.ru/mdjiuj}
\transl
\jour JETP Letters
\yr 2022
\vol 116
\issue 11
\pages 779--784
\crossref{https://doi.org/10.1134/S0021364022602378}
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