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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2023, Volume 117, Issue 1, Pages 50–54
DOI: https://doi.org/10.31857/S1234567823010068 (Mi jetpl6836) 		 
CONDENSED MATTER

Interference transport in a two-dimensional topological insulator in a CdHgTe quantum well

M. S. Ryzhkovab, D. A. Kozlovcb, D. A. Khudaiberdievb, Z. D. Kvonab, N. N. Mikhailovb

a Novosibirsk State University, Novosibirsk, 630090 Russia
b Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
c Experimental and Applied Physics, University of Regensburg, D-93040 Regensburg, Germany
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DOI: https://doi.org/10.31857/S1234567823010068
Abstract: Interference transport in mesoscopic samples of a two-dimensional topological insulator in CdHgTe quantum wells is studied for the first time. It is established that quasi-ballistic edge transport in such an insulator exists at lengths up to 10 $\mu$m. In this transport regime, almost periodic Aharonov–Bohm oscillations caused by the formation of closed loops with a characteristic size of about 200 nm by edge states are found. The phase coherence length in the two-dimensional topological insulator is determined for the first time from the measured temperature dependence of their amplitude.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 075-15-2020-797 (13.1902.21.0024)
This work was supported by the Ministry of Science and Higher Education of the Russian Federation (project no. 075-15-2020-797 (13.1902.21.0024)).
Received: 12.10.2022
Revised: 10.11.2022
Accepted: 11.11.2022
English version:
Journal of Experimental and Theoretical Physics Letters, 2023, Volume 117, Issue 1, Pages 44–47
DOI: https://doi.org/10.1134/S0021364022602731
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. S. Ryzhkov, D. A. Kozlov, D. A. Khudaiberdiev, Z. D. Kvon, N. N. Mikhailov, “Interference transport in a two-dimensional topological insulator in a CdHgTe quantum well”, Pis'ma v Zh. Èksper. Teoret. Fiz., 117:1 (2023), 50–54; JETP Letters, 117:1 (2023), 44–47
Citation in format AMSBIB
\Bibitem{RyzKozKhu23}
\by M.~S.~Ryzhkov, D.~A.~Kozlov, D.~A.~Khudaiberdiev, Z.~D.~Kvon, N.~N.~Mikhailov
\paper Interference transport in a two-dimensional topological insulator in a CdHgTe quantum well
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2023
\vol 117
\issue 1
\pages 50--54
\mathnet{http://mi.mathnet.ru/jetpl6836}
\crossref{https://doi.org/10.31857/S1234567823010068}
\edn{https://elibrary.ru/nvhyaf}
\transl
\jour JETP Letters
\yr 2023
\vol 117
\issue 1
\pages 44--47
\crossref{https://doi.org/10.1134/S0021364022602731}
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