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Article Dans Une Revue Physical Review B Année : 2021

Surface plasmonics of Weyl semimetals

Résumé

Smooth interfaces of topological systems are known to host massive surface states along with the topologically protected chiral one. We show that in Weyl semimetals these massive states, along with the chiral Fermi arc, strongly alter the form of the Fermi-arc plasmon, Most saliently, they yield further collective plasmonic modes that are absent in a conventional interfaces. The plasmon modes are completely anisotropic as a consequence of the underlying anisotropy in the surface model and expected to have a clear-cut experimental signature, e.g. in electron-energy loss spectroscopy.
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Dates et versions

hal-03372718 , version 1 (13-10-2022)

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Xin Lu, Dibya Kanti Mukherjee, Mark Goerbig. Surface plasmonics of Weyl semimetals. Physical Review B, 2021, 104 (15), ⟨10.1103/PhysRevB.104.155103⟩. ⟨hal-03372718⟩
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