129973 20250307094029.0 doi 10.1103/PhysRevB.108.155144 sideral 136298 ART-2023-136298 eng Lorén, Fernando (orcid)0000-0002-6685-9155 Spin-momentum locking breakdown on plasmonic metasurfaces 2023 Access copy available to the general public Unrestricted We present a scattering formalism to analyze the spin-momentum locking in structured holey plasmonic metasurfaces. It is valid for any unit cell for arbitrary position and orientation of the holes. The spin-momentum locking emergence is found to originate from the unit-cell configuration. Additionally, we find that there are several breakdown terms spoiling the perfect spin-momentum locking polarization. We prove that this breakdown also appears in systems with global symmetries of translation and rotation of the whole lattice, like the kagome lattice. Finally, we present the excitation of surface-plasmon polaritons as the paramount example of the spin-momentum locking breakdown. info:eu-repo/grantAgreement/ES/DGA/E09-17R-Q-MAD info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2020-115221GB-C41 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.2 2023 MATERIALS SCIENCE, MULTIDISCIPLINARY 201 / 439 = 0.458 2023 Q2 T2 PHYSICS, CONDENSED MATTER 31 / 79 = 0.392 2023 Q2 T2 PHYSICS, APPLIED 62 / 179 = 0.346 2023 Q2 T2 1.345 2023 Electronic, Optical and Magnetic Materials 2023 Q1 Condensed Matter Physics 2023 Q1 6.3 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Genet, Cyriaque Martín-Moreno, Luis (orcid)0000-0001-9273-8165 108, 15 (2023), 155144 [8 pp.] Phys. Rev. B Physical Review B 2469-9950 818556 http://zaguan.unizar.es/record/129973/files/texto_completo.pdf Versión publicada 2924490 http://zaguan.unizar.es/record/129973/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:129973 articulos driver 2025-03-07-09:38:54 ARTICLE