Nonreciprocal Weyl semimetal waveguide
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866912399713370112 |
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| author | Peluso, Marco De Martino, Alessandro Egger, Reinhold Buccheri, Francesco |
| author_facet | Peluso, Marco De Martino, Alessandro Egger, Reinhold Buccheri, Francesco |
| contents | We study a cylindrical plasmonic waveguide consisting of a magnetic Weyl semimetal embedded in a dielectric medium. We determine the dispersion relation of the surface plasmon polaritons and show how it depends on the plasma frequency, the radius of the semimetal and the separation between the nodes. We show that the band structure, which modifies the electrodynamics in the medium, manifests itself through a pronounced asymmetry in the dispersion curves and a giant splitting in the group velocity, with the orbital angular momentum as a control parameter for the direction of propagation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01503 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nonreciprocal Weyl semimetal waveguide Peluso, Marco De Martino, Alessandro Egger, Reinhold Buccheri, Francesco Mesoscale and Nanoscale Physics We study a cylindrical plasmonic waveguide consisting of a magnetic Weyl semimetal embedded in a dielectric medium. We determine the dispersion relation of the surface plasmon polaritons and show how it depends on the plasma frequency, the radius of the semimetal and the separation between the nodes. We show that the band structure, which modifies the electrodynamics in the medium, manifests itself through a pronounced asymmetry in the dispersion curves and a giant splitting in the group velocity, with the orbital angular momentum as a control parameter for the direction of propagation. |
| title | Nonreciprocal Weyl semimetal waveguide |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2410.01503 |