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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2025, Volume 121, Issue 5, Pages 381–385
DOI: https://doi.org/10.31857/S0370274X25030087 (Mi jetpl7459) 		 
CONDENSED MATTER

Long-wavelength intervalley plasmons in transition-metal dichalcogenide monolayers

R. Z. Vitlina, L. I. Magarill, A. V. Chaplik

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
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DOI: https://doi.org/10.31857/S0370274X25030087
Abstract: The spectrum of plasma oscillations in a transition-metal dichalcogenide monolayer strip (planar quantum wire) has been found. In the long-wavelength limit, in addition to the usual one-dimensional plasmon branch, a second branch with a linear dispersion relation appears due to the intervalley coupling ensured by the electric field of the wave rather than to virtual transitions of electrons between the valleys. In the infinite plane such a branch is absent.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation
This work was supported by the ongoing institutional funding.
Received: 28.12.2024
Revised: 10.01.2025
Accepted: 14.01.2025
English version:
Journal of Experimental and Theoretical Physics Letters, 2025, Volume 121, Issue 5, Pages 360–364
DOI: https://doi.org/10.1134/S0021364025600107
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: R. Z. Vitlina, L. I. Magarill, A. V. Chaplik, “Long-wavelength intervalley plasmons in transition-metal dichalcogenide monolayers”, Pis'ma v Zh. Èksper. Teoret. Fiz., 121:5 (2025), 381–385; JETP Letters, 121:5 (2025), 360–364
Citation in format AMSBIB
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\by R.~Z.~Vitlina, L.~I.~Magarill, A.~V.~Chaplik
\paper Long-wavelength intervalley plasmons in transition-metal dichalcogenide monolayers
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2025
\vol 121
\issue 5
\pages 381--385
\mathnet{http://mi.mathnet.ru/jetpl7459}
\edn{https://elibrary.ru/FASOMQ}
\transl
\jour JETP Letters
\yr 2025
\vol 121
\issue 5
\pages 360--364
\crossref{https://doi.org/10.1134/S0021364025600107}
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