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Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations

The electrostatic theory of surface magnetoplasmons on a semi-infinite magnetized electron gas is generalized to mixed Faraday–Voigt configurations. We analyze a mixed Faraday–Voigt type of electrostatic surface waves that is strongly direction-dependent, and may be realized on narrow-gap semiconduc...

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Autores principales: Moradi, Afshin, Wubs, Martijn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8443765/
https://www.ncbi.nlm.nih.gov/pubmed/34526581
http://dx.doi.org/10.1038/s41598-021-97681-x
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author Moradi, Afshin
Wubs, Martijn
author_facet Moradi, Afshin
Wubs, Martijn
author_sort Moradi, Afshin
collection PubMed
description The electrostatic theory of surface magnetoplasmons on a semi-infinite magnetized electron gas is generalized to mixed Faraday–Voigt configurations. We analyze a mixed Faraday–Voigt type of electrostatic surface waves that is strongly direction-dependent, and may be realized on narrow-gap semiconductors in the THz regime. A general expression for the dispersion relation is presented, with its dependence on the magnitude and orientation of the applied magnetic field. Remarkably, the group velocity is always perpendicular to the phase velocity. Both velocity and energy relations of the found magnetoplasmons are discussed in detail. In the appropriate limits the known surface magnetoplasmons in the higher-symmetry Faraday and Voigt configurations are recovered.
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spelling pubmed-84437652021-09-20 Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations Moradi, Afshin Wubs, Martijn Sci Rep Article The electrostatic theory of surface magnetoplasmons on a semi-infinite magnetized electron gas is generalized to mixed Faraday–Voigt configurations. We analyze a mixed Faraday–Voigt type of electrostatic surface waves that is strongly direction-dependent, and may be realized on narrow-gap semiconductors in the THz regime. A general expression for the dispersion relation is presented, with its dependence on the magnitude and orientation of the applied magnetic field. Remarkably, the group velocity is always perpendicular to the phase velocity. Both velocity and energy relations of the found magnetoplasmons are discussed in detail. In the appropriate limits the known surface magnetoplasmons in the higher-symmetry Faraday and Voigt configurations are recovered. Nature Publishing Group UK 2021-09-15 /pmc/articles/PMC8443765/ /pubmed/34526581 http://dx.doi.org/10.1038/s41598-021-97681-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Moradi, Afshin
Wubs, Martijn
Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title_full Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title_fullStr Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title_full_unstemmed Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title_short Strongly direction-dependent magnetoplasmons in mixed Faraday–Voigt configurations
title_sort strongly direction-dependent magnetoplasmons in mixed faraday–voigt configurations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8443765/
https://www.ncbi.nlm.nih.gov/pubmed/34526581
http://dx.doi.org/10.1038/s41598-021-97681-x
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