{"intvolume":"       112","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"first_name":"Marc","last_name":"Vila","full_name":"Vila, Marc"},{"orcid":"0000-0003-2724-3523","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","last_name":"Sunko","first_name":"Veronika","full_name":"Sunko, Veronika"},{"last_name":"Moore","first_name":"Joel E.","full_name":"Moore, Joel E."}],"extern":"1","day":"01","publication":"Physical Review B","type":"journal_article","doi":"10.1103/bzzy-ngcs","article_processing_charge":"No","date_created":"2026-03-11T10:38:52Z","volume":112,"date_updated":"2026-03-16T08:37:20Z","publication_status":"published","article_type":"letter_note","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"external_id":{"arxiv":["2410.23513"]},"year":"2025","publisher":"American Physical Society","oa_version":"Preprint","arxiv":1,"_id":"21433","issue":"2","article_number":"L020401","citation":{"ista":"Vila M, Sunko V, Moore JE. 2025. Orbital-spin locking and its optical signatures in altermagnets. Physical Review B. 112(2), L020401.","ieee":"M. Vila, V. Sunko, and J. E. Moore, “Orbital-spin locking and its optical signatures in altermagnets,” <i>Physical Review B</i>, vol. 112, no. 2. American Physical Society, 2025.","apa":"Vila, M., Sunko, V., &#38; Moore, J. E. (2025). Orbital-spin locking and its optical signatures in altermagnets. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/bzzy-ngcs\">https://doi.org/10.1103/bzzy-ngcs</a>","chicago":"Vila, Marc, Veronika Sunko, and Joel E. Moore. “Orbital-Spin Locking and Its Optical Signatures in Altermagnets.” <i>Physical Review B</i>. American Physical Society, 2025. <a href=\"https://doi.org/10.1103/bzzy-ngcs\">https://doi.org/10.1103/bzzy-ngcs</a>.","short":"M. Vila, V. Sunko, J.E. Moore, Physical Review B 112 (2025).","ama":"Vila M, Sunko V, Moore JE. Orbital-spin locking and its optical signatures in altermagnets. <i>Physical Review B</i>. 2025;112(2). doi:<a href=\"https://doi.org/10.1103/bzzy-ngcs\">10.1103/bzzy-ngcs</a>","mla":"Vila, Marc, et al. “Orbital-Spin Locking and Its Optical Signatures in Altermagnets.” <i>Physical Review B</i>, vol. 112, no. 2, L020401, American Physical Society, 2025, doi:<a href=\"https://doi.org/10.1103/bzzy-ngcs\">10.1103/bzzy-ngcs</a>."},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2410.23513"}],"quality_controlled":"1","date_published":"2025-07-01T00:00:00Z","status":"public","OA_place":"repository","abstract":[{"lang":"eng","text":"Altermagnets, magnetic materials with zero magnetization and spin-split band structure, have gained tremendous attention recently for their rich physics and potential applications. Here, we report on a microscopic tight-binding model that unveils a unique coupling between orbitals and spins in 𝑑-wave altermagnets, which gives rise to momentum-dependent and spin-selective optical absorption. This coupling promotes the controlled optical excitation of up or down spins depending on the polarization direction of linearly polarized light. Such an effect originates from the coupling of orbitals to the sublattice degree of freedom through the crystal field, which is then coupled to spins through the antiferromagnetic interaction. Our crystal field analysis, which is general to any type of altermagnet, helps understand the onset of altermagnetism from a microscopic point of view, and we use our results to propose clear magneto-optical signatures of our predictions. Our findings shine light on the interplay between orbitals and spins in altermagnets, thus paving the way towards novel orbitronic and optospintronic devices."}],"OA_type":"green","language":[{"iso":"eng"}],"month":"07","title":"Orbital-spin locking and its optical signatures in altermagnets","oa":1}